Here's a sketch I did a while back .
Is this what your looking for..... minus the over-sized monster poking through the roof shifting a Pistol-grip of course ?
Only problem is how soon you'd need it done .... I'm currently working 2 jobs for 1/2 the pay tryin' to stay afloat since "You KNOW Who" destroyed the economy ???
So not a lot of time in my busy schedule