Hartman, decals are ok, as long as they are intended to replace the kit decals. Like stars and bars and what have you. I understand that some, if not all of us will have decals that are beyond salvage. The no AM parts is more so for resin and PE, or decals for a completely different model than the box. After thinking about it, I would say even vacuform canopies could be allowed, as some older kits may have missing or damaged clear parts. I've run into this with one of my T-28 trojans. It was missing the clear sprue all together.
As for the badge, you just have to go to your profile and add this to your signature:
http://i45.photobucket.com/albums/f86/ViperMP/ClassickitsGB.jpg
Make sure to add the IMG tags to it. Then you shall have a badge!!!!!