I think my first choice would be a '54 GMC COE, but Advance Design or Art Deco either one would work for me.
I have a line on a '51 Chevy and depending on the price may buy it without looking much further.
But I've always liked the almost menacing look of a GMC Art Deco COE with all those horizontal bars, and if I find one of those that will be the one. I think there was one in some old movie that has just the look I want.
The motorhome isn't in my yard yet, so my wife hasn't really had her say yet...