I agree with getting the one closest to the finish line over the finish line. I think the three US tanks all qualify there.
And on the M60A3, you mentioned masking for the NATO camo... are you going with the NATO Tri color CARC scheme? Those had a soft edge pattern, although the feathering was pretty tight. MERDC schemes go with way, some hard edged, some feathered. I saw plenty of both.