sand blasting

I did the bottom of my volare on a home made rotisserie with a pressure pot and black beauty coal slag.i didn't do the inside floor pans or the outside of the body. I don't think I would.
I have been talking to a couple of dustless sandblast guys about doing my d250. They're all shut down for the winter but the price in hearing definitely seems worth it. We will see. I did the volare outside on a concrete drive