I no my drawing wasn't to scale but you get the deign idea.

There going to be none moving claws so I can ram the robot inside my claw`s so will need powerfull drive motors. I'm also thinking of have the spinner weapon at the back of the bot

Its a main`s power angle grinder at 800w. That will be powered by the two drive wheels. And the spinner weapon will be powered by a 9inc angle grinder at 1000+w

I don`t no what grade of the stainless steel is all I no its very tuff and spinners will have trouble ripping through it. Will take a few attempts to get through.(But hay I hope they don't get a chance to)