J.Daddy;the walls are already painted blue. I'm not going to paint the ceiling. I have forced hot air in the house & the runs hang below the rafters in a few places & I really don't want to paint them.
Hudson J1e; I went with 120 radius for just 1 loop. I want to be able to run anything that comes out. About a year ago I purchased a turbo train & could not run it on my Ross 072's & I swore that wouldn't happen again.