I just finished the so-called ASU-85 mod.1970 by Trumpeter. According to my sources it should be called ASU-85M in the Soviet system or M1974 in the NATO one.
The kit is built with very modifications. I only replaced some PE parts (small tanks straps and mud flaps) by tin and aluminum homemade parts.
It has been painted in XF-67 NATO green and weathered with a dark brown wash, streaking with oil dots and various pigments shades.
More to see at my site.
Olivier