These tank clones might come in handy for parts:
http://www.trendtimes.com/mirctawitr.html
After looking at the picture carefully, it seems that the it's the exact same mold used by Konami for the Digi-Q's, but modified for RF and missing the combat system.
The only difference I noticed between my Digi-Q Panther winter edition, is where the turret meets the barrel. They filled it in because they didn't need the MicroIR stuff.
I'll get one to be sure, but I think you should be able to scavenge:
Motors
Gear sets
Wheels
Tracks
batteries
and Detail parts
There's another thread about these in the 'Other Tiny RC' forum where some people got them off ebay.
Not bad for $20.
Tyson