Help me make my dream T-shirt mockup. Not existed.

Hi I´m a designer from Sweden. My dream mockup is 2 designs/smart objects. No arm design I want arms just being a part of the rest of the design. 2 designs, back, and front. And the most important, ghost view on left and right.
Please help me. Right now I use a front/back but with no sleeve design. But it has no ghost view.
can you help me out?
Peppe from Sweden