The Stompa build is complete. I've got nothing really to add to what I've already said except that I kind of half-assed the OSL and treated this thing kind of like a piece of terrain overall. It's a big monster and I am only willing to put so much time into it.
Having said that, I'm quite proud of it overall and look forward to games featuring it in the future. Now I just need to get some custom foam made for him as he is still a lot more fragile than a regular model and he'll also be quite susceptible to dust cling. I'll probably put him in a plastic grocery bag to keep the dust off.
I won the model at Adepticon 2013 during Boota Town, so a big thanks to MightyTim and the Freebootaz.