Prepping factory k-member for race duty

I have a soda blaster, and a sandblasting cabinet that it will fit in (homemade, 3/4 plywood). I could take it to my high quality machine shop. Which do you recommend? Hard to do any outdoor blasting with soda or sand with the current snow/freeze. I have patience, though. I want to do this right. "clementine" has agreed to do the welding, but I want to bring it to him as clean as I can get it. He's a hell of a nice guy, with a cool big block 383 1967 'Cuda.