My resolution for the New Year was to take back my word and drop my 1:35 "Weird War 2" collection (I'll convert them in a later date) for a 28mm and 15mm sci-fi collection. But I don't want to spend a lot of money doing that, specially with the 15mm. So..after some digging around in my stash, I've came across some old diecast toys that should fit the bill...or not. Here are some pics:
First - a truck, a Hummvee and some sort of VAB with a turret:

Another shot of the VAB and a M-1 Abrams:

All the figures are ARC Recon Troops
I think that they'll work ok, except for the Hummvee. It's too big - the tires are the same size as the VAB ones. What do you guys think?
And has anyone converted diecasts like these into sci-fi vehicles? I see a lot of matchbox cars who just need a new coat of paint to look properly "sci-fi" but what about converting tanks like the M1 to a hover-tank, anti-grav, that sort of thing?