Ok no piccys but I "modded" yours first off the "wierd to me" gun....Red is cuts and blue is glue..... cut the handle down and trim up the bolter in the rear. glue his hand to the rear of the bolter making it more angled-ish. cut the end of the handle off and reglue to the bottom of the shorter handle
Next is the 2nd hand.....Red is a "horn" (think chaos HB) or a "D" handle like thing with the flat part of the D to the bolter. Blue is a Handgrip/hand pad. I think either would portray a sturdy 2nd hand placement site.
I do like this idea and may use these guys for my Ogryns!! I would need to make them more "Ratling like" but I might!!
Once again just my thoughts and feel free to blow them off!!!