Gaston, just scratchbuild it!!! Forgoodnesssakes, a Sherman Hull is all flat plates!!!! If it was a RAM, or a Sentinel, or a cast M3, I'd understand some trepidation, but flat plates just glued together; how difficult can it be? OK a bit difficult, as HobbyBoss and Tamiya have clearly showed us, but if you know what you want, just get on and make it!!!