Welcome ! to OCC ,My experience with sandblasting is to take it to someone that has a sandblast business and proper equipment as it is a hateful nasty job ! Nothing wrong with having a decent shop compressor but likely you'll need to spend a grand or more to get one that would do a decent job of blasting, then after about the first minute or so you'll be looking for a fresh air supplied blasting hood so you can breathe,then you'll want to have a dedicated space for all the dirt,dust and spent sand or media to reside in that doesn't take a month to clean up after you blast for 10 minutes, not trying to discourage you but rather share "my" blasting experience !! Good luck