Remove the bearings from the hubs. unless they have just been replaced - there better off being replaced anyways.
Balljoints on the tca's can be taped up during sandblasting. then the rubbers removed for powdercoating -new rubbers and spot of fresh grease on assembly.-or buy new ones.
Track rod ends are cheap & probs better replacing when your doing the refurb anyways.

Or if the parts mentioned are in good serviceable condition. take time to rub them down- wire brush on the grinder etc. then prime and paint.
Dont need to then worry about nasty grit blast getting places it shouldnt or heat/powdercoat doing the same. Well prepped and painted parts will stay good.