If I can recreate the lighting setup then I can bake the lights on to the model in Blender. That way, even though it's just lit by one colour value and has no shadows, it would effectively appear like it does.
I had the model split up anyways for organizational purposes, too. It also needs to be split across multiple levels because it's too tall. I just don't want to see a bunch of duplication of work, is all.
Textures are limited to one image per .md2 model, right? There's that, too - I have to split it up anyways for texturing.