Retroid Pocket 2 FrankenGrip

At first was attempting to scale an RG351 grip to fit a RP2, after many attempts without a physical RG351 I gave up and decided to mush together what I knew fit with what I want to fit

https://www.thingiverse.com/thing:4651925

Plus

https://www.thingiverse.com/thing:4685200

Equal this

Please someone better than me fix this monstrosity. My skills end at Split and Merge