Hello my friend,
These are the photos that I could find the fastest. I know that I have some more shots of the suspension, but it will take a bit more time to locate them. I hope that these will help you with your model.
It may be of interest to note that the turret in the second photo retains what appears to bee the original style of the M-60A1 without the additional "cheek" armor associated with the M-60A3 modifications. I was under the impression that all of the -A3's had been uparmored. I think that this would make an interesting model as well.