The attention to technical detail in "Fury" is impressive - the fact that Fury is actually an M4A2E8 is pretty minor. I thought the logs hanging from the side were inaccurate (they were too spindly to stop a shell), but there are photos of M4s carrying logs for use in muddy terrain. The film's depiction of combat is less impressive - particularly the engagement with the German Paks in the field (in which no tactics of any kind are apparent, despite the experience of the US tankers) and the increasingly unbelievable final battle.
I'm amazed that they were allowed to put a venerable museum piece like the M4A2E8 though such relatively rough treatment. It must be in good condition. It's certainly become an iconic tank - along with Oddball's M4A3E4.
As I said before, the basic M4A3 kit is a good one. A new sprue of parts to upgrade it to M4A3E8 standard would be a good way of (1) dealing with the problems with the 76mm turret, and (2) providing a potentially popular version without doing an entirely new kit.
I agree with UVS that an M4A2 would also be nice. I guess that's another opportunity to re-do the 76mm turret.