sand blasting????????

From what I hear soda blast is the best. Not sure if you can just change tips on a standard sand blaster and use soda.
Not to mention you you don't have all the sand to clean out. I remember reading in hot rod (long time ago) they had to tape seams at drag strip from sand coming out on hard launch.

Soda does a great job of removing paint but you will still need sand to blast any rusty areas. You also have to neutralize the metal after soda blasting. It leaves a film on the surface that needs to be removed for paint to stick.
And it's just as messy!