I don't see why not, Andre. I've seen some pretty respectable traditional O railroads on the forum, and it should be no different than with traditional Flyer. Particularly as Gilbert did mostly prototypical paint schemes.
It pretty much boils down to the scenery treatment and not using or careful placement the out of scale accessories. However, it would be pretty hard to do the slow speed switching, as I recall, the Flyer e-unit needs about 5v to trip.
Rusty
