And don't forget about
KINGSWAY MODELS - Home Page
And you are probably close enough that New England might fit in with your layout.
https://www.fiddlersgreen.net/
FiddlersGreen gives you three models when you register.
I always liked the West Japan Railway roundhouse,
https://www.westjr.co.jp/fan/paper/object/
Needs rescaling, but the Illinois/Lincoln models could fill in some gaps,
https://www2.illinois.gov/dnrhistori...ainstreet.aspx
What era are you working on for your railroad?