Okay so here goes...
Need to get fresh sandpaper. Long story, but my sandpaper collection got corrupted by an angry cat that got locked into my shop... (Shouldn't have been there!)
https://amzn.to/42TFA2V
My sanding disks for the orbital sander are fine, sleeves for the Dremel are in perfect shape...
Next...
Oh and the Amazon links are placeholders for me and for you to get an idea. The same items are cheaper at Walmart, but not logged into my walmart.com account you can't see the same stuff...
Ospho rust coverter to stop any rust that gets missed.
https://amzn.to/3Qi38Hh
Chip brushes for applying Ospho. No link.
PPE / gloves / respirator / safety glasses to keep from killing or harming myself.
3m heavy drip check sealer since I am going to rip the drip rail sealant out.
https://amzn.to/4b0KixG
Wen Rotary tool (Dremel clone) with flex shaft.
https://amzn.to/41lElqX Not going to show link, but large assortment of grinding, sanding attachments...
Bondo Long Strand Fiberglass Reinforced Body Filler with hardener.
https://amzn.to/4hDslYF
Rust Oleum Self Etching automotive primer.
https://amzn.to/3CTbXnG
4 Liter Raptor Liner spray on kit with spray gun since this WILL jam up a spray gun...
https://amzn.to/3CNU9KJ
4 liter Raptor Liner tintable kit, no spray gun. Only need one.
https://amzn.to/41e8Hwy
Acetone to clean the gun and any other doo dads. I need a fresh bottle anyway for other cleanup of finishes...
https://amzn.to/3CTSa7K
Heaviest gauge aluminum HVAC tape I can find as a backer. Home depot in store...
I can fab up a flat block for sanding / leveling the small areas in my wood shop pretty quickly...
My idea on the process would be...
Using the dremel, sanders, etc... strip back to bare metal, removing the sealant, paint, rust etc...
Treat exposed metal with ospho, rinse, encourage to completely dry...
Cut out and apply HVAC tape to the back side / inside of the gutter, forming a backer.
Mix up and apply in small batches kitty hair bondo, smoothing as close as reasonable...
Let cure.
Sand, level, shape and smooth the bondo, prime, sand, check. mixing, filling in any low spots, lather rinse repeat until acceptable smooth and level.
Prime and paint.
I have a connection that tints Raptor Liner for a tiny fraction of the cost of the Upol tints using standard automotive paint tints... If he can get passable results I would actually like to go with Ford Arizona Beige and Ford Dark Stone...
Not going to put too much worry into the door jams etc... It would be obvious this is a repaint anyway...