Pretty common quick fix to spray over old gel in an attempt to restore the flake. Looks ok for awhile. Since your not dealing with flake to save, you have greater options. If you're planning a long term ownership, I would strip and repaint, either auto finish or gel. I've seen folks blend more clear in, but it looks kinda awfully, and doesn't last. I've never done it, but I wonder if an auto stripper chemical could pull the clear and auto paint off without affecting the gel. Might be worth a try and could save time sanding.