I had a chassis, with no shell, of a Marx 1998 diesel switcher (shown below) that, by the way, is probably the best running Marx of all.
I also had a shell of a Lionel SW-1 switcher. The shell was too big for the Marx chassis so I had to cut about 2 inch of length out of the body. I painted it red, white and black in the colors of the Bauxite and Northern railroad, an ALCOA owned alumina and chemical in plant railroad in Bauxite Arkansas where I used to work. It is a hybird of Marx and Lionel diesel switchers and shown below.
This the fastest most fun loco I have and my adult daughter still loves to speed it through a dogbone with the switching 4 Marx switches a fast as possible.
Does anybody else have a hybird loco and be willing to post a picture?
Charlie