Here is the secret list of Paul Hesier Models Sherman tanks. The prices are tentative. Notice the numbering system has changed to permit the addition of the new tanks.
The US Army tended to us their tanks in the Infantry Support role and the short barrelled 75s were excellent in that role. They could even fire indirectly, like artillery.
The 76mm gun was a high velocity gun, designed as a tank killer, not as good as the Panther, the Army was behind the cure in fielding new anti-tank guns in tanks for most of WWII.