everytrhing you want to remove is under the clear coat. so you will need to sand the decals off(80 grit on a DA sander works fine for me). feather all of youf edges (180 grit on the DA) prime at least the sides of you tank or the whole thing. i can usally get away with priming just the sides. you dont have to worry too much about the stripes becouse they are under the clear and with your priming and sanding it wont affect your paint job.be sure to block sand the sides you have primed or you will get ripples in your paint. make sure to do all of your final sanding with 400 grit, wet works better including your block sanding. then you can start your refinishing process. Good luck