Yes, for now you have to make your own. If the economy would pick up then the other tanks would get made but no word yet so far.

All Baldwin built M4 Shermans had the 3 piece differential housing and direct vision slots with a rolled lower plate under the engine doors. These tanks served in every major theater from '43 on.

Pick up a Dragon 1/35 sherman of the variant you want and scale up the parts you want to replicate with sheet styrene.