I talked to Denes and a couple other guys early this morning about it..
It's not the same 3D printed turret at all. The upper hull isn't 100% like Denes' from Hungary, but it could be a different run.
From what I can tell it's a fella either selling this one, or occasionally building a few and putting them for sale. If that turret is molded it'd be a nice addition.
Tiger I - Panzer III - Panzer IV - Chi Nu Kai - Panther G - KV-1b 756(r)
M4A3(76) Sherman - T-34/85 - M3 Grant