Cool, the only problem is that Johan kits are hard to come by here in OZ. Would the new Judge GTO chassis be the right one?
I believe the Model King GTO and the Cougar are close if not one and the same
But, even though I have several of each I don't have one handy right now to compare, but from what I do know it would be closer than the MK challenger chassis
ps, Johan challengers are all over Ebay ( I just bought 3 myself ) typically they run in the $25-$35 range