Go pro case for phone side shot mount?

Hey guys. I have the side shot phone mount. But I want to use it with my go pro 7 to record slowmo. Where do I buy the go pro case to mount to put on my side shot. Do they make a go pro case and sell it separately from the side shot so ppl with the phone mount and just take it off and replace with the go pro case without buying to whole set up which is 279. Vs maybe just buying the case for $40-50.
 
The GPH7 side shot mount uses the Super Suit Protective dive housing. But you will not be able to just buy that case and use it to mount to your current sideshot. There is an intermediate piece that you will need, as well as modifying the Super Suit to mate to that intermediate piece. After everything is said and done, you'd be better off selling your current mount and purchasing the GPH7 one. Here's an adapter piece I designed to allow the GPH7 with lens protector (Super Suit requires the removal of lens protector). The pictures kinda illustrate what you will need to overcome if you decide move forward with the conversion.

https://www.thingiverse.com/thing:4423942

Good luck!