I am working on a custom painted Lionel 44-tonner project to pull some tinplate cars. I have a working postwar #628 chassis but the body has a large crack in it and I won't want to invest a lot of time painting a shell with damage. So, I am looking for a replacement body shell. I don't know a lot about whether an MPC-era Lionel shell, or a shell from Williams or WBB, would work. However, if you know that they would work then I would be interested in a shell from one of them instead.
OR... if you have an undecorated 44-tonner of any brand (body & chassis) I am willing to start from scratch with them. My email is in my profile.