@stevefrompa https://ogrforum.ogaugerr.com/member/stevefrompa thanks for your detailed and informative response. I would say that your layout is a well balanced mixture of manufacturers and eras. I plan on giving the plasticville a try, its not going to cost me anything, so I have nothing to lose.
@GEORGE.S https://ogrforum.ogaugerr.com/member/george.s your last response about the Atlas building painting the roof with enamel reminded of one of your previous posts that showed that. I can apply the same method to some plasticville to make more of a tinplate look.