I can only find fenders for 73 rr/gtx etc. but not for the "4door" satellite model. Are fenders interchangeable? I've been looking for YEARS for replacement fenders ;(. I've found a perfect set online that says for the 2 door 73 GTX / RR / and Satellite and the pictures look almost identicle except that the nose sticks a little further out. the sheet that bolts inside the engine bay is practically identical to that of the 4 door satellite....