Shokk Attack! WIP Big Mek w/Shokk Attack Gun

I've always liked the Shokk Attack Gun, from the first time I encountered them in the Epic Ork and Squat Warlords book.  I had great fun blowing Titans apart with warp-crazed snotlings back in the day.  

I love the current SAG model, but have yet to put down the money for one.  So, instead I had the urge to try to convert one.  At first I looked at a loota kit, but decided that the Big Mek should be at least nob sized, so started with a nob body.

The loota frame is too small for a nob, so I started looking around for another good weapon base.  An extra deff dread or kan arm was found, and upside down I felt it could work.  Bits raided, stuff added in various places.

Toggle switch taken from a loota frame, necron scarab, tau battlesuit head, some skaven warpstone thing ( I think from a doomwheel), bit of plate from a trukk or wagon to brace it on, IG lascannon powerpack.

The current plan is to paint the interior of the barrel like you're looking into the warp - pinks and purples with little white dots or something.  Choppa for whacking gadgets or banging himself in the head to help him remember stuff.  Stuff like: banging yourself in the head with a choppa hurts!

Mek tools and bosspole.  Metal plate on his head for his bionic bonce/cybork body.