its a re-body. 73 was the ONLY year the OSAC valve was mounted on the firewall. A true 70 wouldn't have it because it wasn't even developed yet. The heater box is also the 73+ flange type with 3 bolts not the 4 bolts like 67-72. So unless someone changed out the firewall and cowl....its a re-body on a 73 body shell.
That explains why the rally dash is missing and everything points to 73+ the inner door tops are plastic (73+) not metal
View attachment 1714987701