Italeri IS-2 hull and a resin (early) T62 turret.
(https://i.imgur.com/ezSPa3g.jpg)
(https://i.imgur.com/d868Nds.jpg)
Needs some sort of mating-spacer between the lower and upper turret races. The turret overhang would block access to the engine grills, no matter which way the gun tube was oriented.
Italeri IS-2 hull and an ESCI (I think) T55 turret.
(https://i.imgur.com/sdTu6yM.jpg)
(https://i.imgur.com/UePQ2dk.jpg)
If I had to put antiques back onto a 21st century 4G battlefield, the 55 option makes more sense to me from many angles; engine access is doable, T55 turret race is close-enough to a JSII's, 100mm ammo seems more available than 115mm, T55 is AK47 stupid-simple.