Tamiya T-72 help needed

I have a tamiya t72 m1, i know it has its shortcomings, but i would still like to build it. I plan on making either an east german or czech version out of it but im having a real hard time finding detail sets. I would like to make all of the corrections so after some searching i found the cmk T72a1 detail set fir this vehicle. Is that a typo that should read M1? I picked up trumpeter indy tracks, and i would like to find an aluminum gun barrel, accurate wheels etc. can someone point me in the right direction?