Scott, looks like you're on your way! If you need parts in the future, let me know. I have a plastic tub of spares around here somewhere.

Answer to your wheel question; Nope, front or rear wheels won't fit. I guess you could do some mods and make something work, I'm not sure. Here are some pictures..

Also, I have taken other pictures of some Cox cars. Let me know if you want to see them!