If I were you, I would take the new door. Ford did paint that, and the paint will be spot on since the entire process is done by computer codes and robots. The paint will be exact! Your door will still be under waranty. I'm currently, and am still a Marine for 16 years and totally feel for you brother. But the door swap will be really flawless and won't hurt the value of your car being that is a direct ford part. I really hope you take my advice and just be done with this whole deal.
2014 Saleen Mustang White Label 14-013: Vortech V3 supercharger, Lund Tuned, ID1000's, NGK iridium plugs, Airaid CAI, BMR upper control arm and mount, BMR lower control arms w/ relocation brackets, BMR adjustable panhard bar and support brace, koni sport struts/shocks w/ GT500 strut mount, GT500 Brembo brake upgrade, CS fog lights, Stillen chin spoiler, Barton Shifter and two post bracket, Plasti-Dipped hood vents, and various Saleen parts and accessories.