nice work
this amt kit has also been issued as a 73 mustang at a couple different points in time under both the amt/ertl name and the round 2 name and as a 71 boss 351 under the the amt/ertl name
and most likely this started out as the original mpc 73 annual and amt/ertl later tried to backdate it to a 71 with different grille parts and front bumper and that is why it has so many different parts
at least it is not as bad as the amt/ertl and round 2 mpc knight rider kit which is horrible as they basicly kitbashed that kit badly a 88 gta turbo body a 91 gta interior pan and tail light panel and the original mpc 82 knight rider rims and nose and interior parts which one part does not even fit the 91 gta interior pan's center console