Just thought I'd post my observations/experience removing rust / paint in restoring my 58 861. I used electrolisis, cider vinegar & molasses and paint stripper with lye (PSwLye-EasyOff) to remove paint and rust from various pieces and parts.
The vinegar/molasses (10:1) solution worked best as removed rust and loosened paint most effectively. It takes longer and is less practicable as it requires a tank but produced the cleanest results. PSwLye was not nearly as effective removing paint from small parts and sheet metal and has little rust removing ability. Electrolysis wasn't effective on paint. It removed rust well but created a coat/film on the surface of the work piece that was difficult to remove.
EasyOFF (PSwLye) worked best on the engine transmission, axles etc. but required a couple of passes. It doesn't remove rust and is obviously caustic and thus harder to work with.