As an aside to No.1's "Crab" variant, my dad and his crew built a couple of these in North Africa in 1943. They used parts of damaged halftracks and other vehicles for the drive, and the engine and transmission of a halftrack was mounted behind the turret to power the flail. Evidently they examined a British Scorpion and adopted their design.
I can't find a kit that suits me here, either, in the land that built the Sherman! I may end up watching this from the sidelines, but it'll still be fun.
Carry on!