Alien Space Bats have Louis XIV's and Frederick the Great's minds from the end of their lives switch places and move to the other's body in its prime

[ATP]

Wrong on 1) and 4). Doubtful on 2) as its likely to put Russia into the Austrian camp, let alone this would rule out the OTL Franco-Austrian alliance. 3) Contradicts what you said earlier.

Right on 1 and 4,doubtful on 2.

3 - sorry for being unclear,from 1764 we was russian puppet state,so they do not wonted partition,becouse they owned us.But they provoked uprising in 1768,could not destroy it/partially thanks to french help for Poland/,and then prussian proposed partition in 1771,russians agree in 1772.
If they do not provoked uprising,they would rule entire puppet Poland till 1806,when Napoleon would come.