Thanks! I really only do the top and side views, so you're out of luck if you're looking for more than that. I've got the Mk II and Mk VII somewhere in this thread, so you'll have to look through the pages to find them. For most of what's seen here, I use Corel Draw. But the updated/redone Mk II and currently in-work Mk VII are done using GIMP.
Speaking of the Mk VII, here's the latest on that:

This is going a lot faster than the Mk II because I discovered how to import my shapes from Corel Draw into GIMP!