WM Supersports or the Kyosho Calmato is my recommendation. The WM T-34 as HitecMan stated is also very good. I think the Calmato is one of the nicest looking low-wing trainers but the Rambler 30 is my vote for the prettiest overall. It's 30-size. I have a 52 4-stroke O.S. in it and it's absolutely wonderful. Only problem is the wheels aren't quite in the right positions... a little bending here and there and it's fine.