I use Testors ELO. Formulated for hobby paint, will not harm plastic. If its fresh paint, it works fast. I stripped a 30 year old paint job. It took a few days off and on. I usually pour a small amount into a ziploc bag, toss the body in and tumble it around to get it all wet. No need to completely submerge it. Use an old toothbrush and warm water to remove paint. It usually takes a few sessions to get it down to bare plastic. You can use a toothpick to clean around emblems and scripts.
Tb