Cedric, if i am reading you right over the last 2 years, the wirewheel and POR15 route is what you need. My green 62, you have seen, was done that route. Knock off the rust scale with all sortz of wire wheels and pads, do some cleaning to get all of the grease and dirt off and then brush on the POR. The POR self levels and leaves a nice hard finish. A top coat of some other paint should be used for UV protection.