What method works best to remove rust? I tried paint stripper, works ok. Then tried flap disks and wire wheels. This worked better, but was impossible to get into tight spaces. I even tried the Harbor Freight sandblasting gun. It kinda worked, but didn't hold enough media and it was a real mess. I finally broke down and had it professionally sandblasted. It cost about as much as all of the supplies I had purchased earlier and gave a much better result.
So if you are needing to repaint a rusty part, sandblasting does have a higher cost, but you will probably spend about the same using other methods that just work "ok".