Unless you plan on doing this full time - I would only get the frame blasted. Then deal with it first and get it done. Then strip the other parts.
Don't sand blast any part of the body unless you use light weight media (small sand / low pressure) or you may warp the panels. You can blast the heck out of running boards and fenders, but door skins / cab panels / hood will all look like heck if you blast them.
