I have a 1983 Aspencade that has serious blistering on the flat surfaces of the center luggage bin and the tops of both of the side bins. The sides of the bins are fine. I have sanded down one of the small tops and tried painting but I'm not getting good results. I have done similar repaints with metal but this is my first time with plastic and it could be just me but it seems to behave differently. I know there is a lot of information at various places on this site but I haven't been able to find a step-by-step discribing how to repaint these pieces. Does such a guide exist and if not could some offer some tips? Thanks.