Forrest: all the more reason for me to get it right!
Thanks for all the information about the MRR scales, it's all very confusing. I'm shooting for HO with these, but I have no idea what kind of aftermarket stuff might be out there already. In any event, I will further pursue the laser cutting idea and see where it goes.
Thank you, Mark! I sure hope I don't put you out of business your line of models was an inspiration for my project.
More details...I'm starting to hammer out the specific details of the locomotive I'm modeling.