I'am afraid no NVA T-72 is compatible with tanks in the GSFG (or WGF as they were named later on) since there were no Soviet/Russian T-72 in the GSFG/WGF. In Czechoslovakia were indeed some Soviet/Russian T-72 with ERA bricks and probably in Poland also. But not in the GSFG/WGF.
Maybe it is that English is not my native language but the origin of the vehicle is quit easy. Just look at the serialnumber and you know the production year, production month, in some cases the variant and the country of origin.
Regards,
Lesley