Carl and Ken,
Carl was right, the design is definitely not final. After moving into the rental house and evaluating the room further, I realized it is not a complete 16' x 13' rectangular-shaped room. The wall where the door to access the room is located is angled causing two of the walls to be much shorter. I updated the spreadsheet for a better representation. Likewise, I updated the SCARM dimensions as well and shaded a certain triangle area as now unusable due to the wall angle and the door opening. Since the layout will need less track, I think going with all Super Snap is the way to go for uniformity and sound. I acquired another LH switch and a RH switch and I see some Super Snap for sale on the forum now. I think I have just about enough to cover the two designs I created, but if not I only need a couple of pieces which are for sale now. Also, I noticed the seller has 96" curves (for easements) available which is something I have not even considered.
I shortened the shelf style and tried to fit the reversing loops but I may be off on track spacing. I think I like this style better as it leaves the room more open.
For the table top design, I would have to make the layout movable to access all the sides; however, this design allows a passing siding and one long spur, and more room for scenery. Although, it heavily infringes on the room.
I would like to know your thoughts and appreciate your help.
Joe