Thanks again for the replies guys...glad there is some interest in a 4WD version...
Probably the 390 that comes in the box, but I could see a few different powerplants in there too!
My son (almost 7 years old) & I went to a car cruise today, and looky what was there:
Nice!
undercarriage:
Talked to the owner for a while...he said he's been waiting for the Moebius kit for about 2 years! I told him we were too! He picked up the kit already and will be building a replica. The black '60 (with a '59 grille) was his too, lucky bugger! The red one has a complete '97 F250 diesel powertrain, wiring harness, and dash. Really nice rig!