Longstrike OMW immortal kit priming help

I have recently installed a OMW immotal kit into my longstrike with a 7kg spring. It works very well exept for the fact that i have to prime with two hands. It also doesn't help that my priming handle keeps falling out. I know how to fix that, but thats not what i am here to talk about. I have seen pump-grip mods for the longshot, but none for the longstrike. So I am asking:

A.if it would be possibe to make a pump-grip mod for the longstrike and how.

B.If it would actually help me not put pressure on the internals like one-hand priming does.

Thanks