Now there's a kitbashing combo if I ever saw one:
Chop the top on the 31 Ford down to look proportionally like a Hummer, then put on the tires/wheels, the running boards and the roof rack! Just kidding!
I don't know about the Hummer because I've never built one of them, but the Ford is a pretty cool kit. The doors and the front suspension are a bit figity to work with, but if you're patient you can get it all aligned and working pretty well.
Good luck,