@GG1 4877, that would look nice! I've always liked the 21" cars! But the MTH stainless is so nice on the Amfleets...
Good luck and keep us up to date on your progress!
Aluminum looks the best, obviously! Especially since I cannot cut the skirts too close to the ends, as there's no cross-body support. Add that to the completely inaccurate window arrangements and I'm not going crazy... Just enough to make my late-90s Lake Shore credible.
Check on Jay Winn's great series on Amtrak 48 at Utica though the years.