You'd get most bang for the buck with the Dragon.
Kirin once did an entire replacement hull and turret that had zimmerit ...... but it was a horrible kit if you ask me.
Cavalier and Eduard would be your best choice.
As a little side info, there were 50 of the so called Porsche turrets. The first 3 were fitted to chassis number V1, V2 and V3 which were test vehicles, in other words there were 47 service vehicles with the so called Porsche turret. The first production turret was mounted on chassis number 280048 which rolled of the assembly line in June 1944.