Belcaptian

Those dimensions are pretty similar to my room  You are on the right track with a track plan  The accessibility of reach(24)and walk arounds of (36) is spot on and very important. One day I will need a sawsall to rectify reach issues (but not today)

Other suggestions

Plan the view. From your main viewing area, (control area?),figure what you will see, your layout is big enough some areas will eclipse others. Figure your and your guests main ‘viewing location and work from there. Elevations are your friend

Don’t be discouraged by the quality of work you see on the forum, some, most is on a professional level. I’m not saying yours will not be, but is very easy to compare and get discouraged.This hobby is so multi faceted everyone excels in one aspect or another.

Don't  stop building if you can avoid it. Run trains as soon as possible. It’s one of the few areas in life you have large control over, enjoy it. Like is frequently said on the Forum it’s your Railroad

I also found the book Model Railroad Scenery and Detailing by Albert Sorenson helpful in its step by step approach.

Have fun.

Steven Taylor

Westfield P & S RR