I've read the FAQ, but in a spanish forum, everybody says that the best way to strip paint is the caustic soda.
Solve it with water, wait 15 minutes, and then put in to the piece and with a teethbrush strip the paint.
But I'm not sure if it will damage the plastic cause I've never try it...
And the products u say in the FAQ are not in spain, but the brake fluid.
toni