I've got a company quoting me $1200-$1500 to do a dustless blasting, rust inhibitor, and shoot two coats of epoxy primer. First question, is this a pretty good deal? Second question, once blasted and primed I can do bodywork over epoxy, and can I wait for up to a year to do the actual paint job? Do I have to worry about rusting or any issues with a blasted epoxied body sitting unpainted for up to a year?