I'm waiting till last and finishing the engine to apply the brass fittings and rails.
Done, it weighs about 9 1/2oz, 250grams. I have at least six lighter and all have at least some weight added, so its no ultra light like you may expect.
(Edit*-the engine requires 0-36)
*And it runs on 027 no problem. The.flanges are smaller than Lionel's but not exact scale; its made to operate well instead. I ended up raiding the ancient button box and haystack of needles, where i came up with two stainless steel hat pins to clip so I have a axles. Later I'll need to line the wheel hubs with brass tube. I gave it a test behind a general using a wire scrap coupling and pulled three cars 
I just gooped glue over the pegs to encapsulate them and set the walls and top first.
Made sure the holes for the brass rail stand offs lined up and that seams sat even.
Catching up on my current events while it dries. Lol. A vintage newspaper special I saved.
