Well, somebody had a Tamiya TA-06 for sale here on rctech for a very good price, so I just bought it so I can prove to many of you how right you may be.
It should be fairly easy to switch it between 4WD and RWD. I suppose I could just remove the rear dogbones to make it FWD, unless there is a quicker way.
I'm happy. I will soon have something to tinker around with.