N gauge should not be hard,plenty of kits around.
You need to try Z, Zm and T gauge for vehicles etc. Z=1:220, Zm is narrow gauge Z ( Swiss RHB ), T gauge= 1:450 (Japanese prototype).
I have built etched brass kits and Nickel Silver in Z and have some for T when I have new glasses,eye test on Sunday.
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T gauge train in foreground with Z gauge behind.
T gauge Layout
Z/Zm diorama minus trains.