Mark, It sure is nice to see your getting time to work in your train room! I am with the rest of the group the back drops look wonderful! I wish I lived closer I would come and give you a hand as your not to be overdoing it! LOL
Things will come along, just take your time and envision what is to come! This is a important time in your build where you can thing of everything and where it will all go! I wish I would have done that more when I started my layout! Like said before just have fun!