One of my decisions to purchase this K-Line Union Pacific Streamline Passenger car K4690-37000 was it had a fully detailed interior. I ran the car on around layout and was enjoying the factory K-Line passengers and its interior details when I started to notice small details that were out of place. First I noticed was that K-Line installed the upper dome seats backwards. Second, detail was K-Line also installed the main coach seats backwards. I know what you are going to say... "It's only a small item" But this meant either the all the passengers were facing the wrong way going around the layout or I had to run the dome car backwards. The final detail that got me was the missing staircase that was supposed to lead up to the dome level. This car had one flat row of plain cream colored seats downstairs on the main level, no walls, no bathrooms and no stairs going up to the dome level.
This was the start of the journey that lead me into researching the original details of the UP 7000 Dome coach and correcting the colors and little details the best I could on my K-Line car. At first I tried painting the K-Line seats and spun the existing plastic interiors around so the passengers faced the correct direction. But after doing this, the seats did not line-up correctly with the K-Line windows anymore and the whole interior looked out of place.
I started by removing the K-line interior from the shell and separating the seats from the plastic base. I was happy with the quality of the existing K-Line bench seats downstairs but K-Line provided way to many seats for the amount of windows in the car. I decided to save these extra bench seats and repurposed them upstairs in the dome area. In the photo below you can see the K-line shell next to the UP plans and original K-line interior. I will attach the UP plans at the end of the post if anyone wants to upgrade your UP 7000 dome coach interior.
To make a new floor I used a thin sheet of 1/16” x 3” x 24” basswood. Then cut it to the same width as metal K-Line base. The ends of the basswood floor were cut slightly shorter due to the clearance for cars power wires and end caps. I elevated the basswood floor on wooden strips to gain clearance above the existing power and ground wires from the trucks. The new floor then got mounted on top of the metal K-line base using the same exact screw locations that held the old plastic interior. The trick is to line up your wooden strips with the factory screw hole locations. In 1999 K-line made this 18" long semi-scale compressed version of the real 85 ft Union Pacific 7000 dome coach. This meant the UP plans did not exactly line up with placement of the semi-scale K-Line windows, so I had to compromises to make the two worlds meet in the middle. Start with gluing in your seats to match the window spacing on your new basswood floor. You can then you can figure out how much space you have left to start putting up the interior dividers and bathroom walls based on the UP plans.
During my research I found 7000 series used plaid colors on the seats and UP turned the dome seats outward 10 degrees so the passengers had better views. See photo below showing mid-1950's style plaid benches, yellow back wall, gray outer carpet with green carpet strip in the center. It made sense to me that UP also used this same color yellow on the walls and green carpet downstairs.
Following the UP plans the downstairs the walls and bathrooms were easy to recreate. The curved staircase proved to be the toughest part of this build. The curved staircase took a while to create but it was exactly the kind of detail I wanted to include for my viewers. See UP stock photo of a 7000 series staircase below. You can tell this photo is a 7000 series car is from the "City of Portland" train-set because it has Snowflake themed wallpaper.
Below is a UP promo photo showing some of the interior colors of the exact UP 7000 dome coach I'm trying to duplicate. It looks like it had green seats, cream headrest covers and burgundy front and back walls. Since I was reusing the K-Line bench seats downstairs my recreation did not have tall seats with headrests covers but I have seen them for sale out there if you want to make yours look exactly like the UP promo photo.
In the photo below is a look at the repurposed bench seats now located in the upper dome area. You will have to remove the old floor from the dome area by cutting it off from the outside. Once the old floor is removed you can attach a new floor using some of the 1/16” x 3” x 24” basswood and then glue the bench seats in place. Note the bench seats were trimmed by the wall to get the 10 degree angle needed (I was not going to try and paint the seats plaid). The UP plans called out for 6 bench seats on each side but since this is semi-scale I could only fit 5 seats on each side.
And now the same bench seats with Preiser passengers. I used Preiser figures from their 24 pack (part# 65602) in this build. And painted the figures to match the people in the UP promotional photos. Since the floors in the dome area and the downstairs coach are higher than normal, you will need to trim the feet off your figures. Also, in the dome you should trim the bottoms on your figures to make them fit under the glass top better.
The final details were inside the Men’s and Women's bathrooms. I used lounge chairs and sinks from www.ScaleCityDesigns.com. I hope this write-up with plans helps others who want to upgrade there 7000 series Union Pacific Dome Coach passenger car.