Fatboy I sent you a PM.
but for the sake of the board I will reply in general.
there are three options for the ez8 right now. Nick Aguilar makes an addition kit from urethane for the tamiya sherman but it is not for the unskilled modeler. Lots of effort and skill are needed to make the turret equipment fit amd work. A search of my started threads will bring up my build like this and show How I did it.

Axels Model Beau supposedly also sells a T23 turret kit, the you still have to convert the rear deck. Their turret looks nice but I have no experience using it.

The easy way is get a Taigen upper hull and turret and mount them on the tamiya chassis. They fit right on. Then cut off the front fenders. Make the side skirt rail and supports and make new front fenders the full width out to the side skirt rail.
​​​​​​​My friend did this recently.