As it was said earlier in the tread, nothing beats the original paint. Well, at least in older models i guess. I am trying to make mine go as long as possible without having to repaint any part of the thing (yeah, i cheat since i changed the hood lol), so I am polishing it every year or two, depending on the severity of the finish's clarity. Since it's usually well taken care of, i only have to do a little jeweling polish to return the luster back, but this time mine is heavily swirled and I will probably not escape a two step correction procedure. This usually takes me a little more than a full day, correcting only, protection after.
As for the battle scars, mine is riddled with it. If anyone is looking closely to mine, i have more rock chips than i care to admit AND the front bumper seems to almost be sandblasted from the time it passed in Ontario and Montreal. Assuming someone driving bumper to bumper all the time lol. For the rock chips, i use this little pen.
https://www.amazon.ca/-/fr/Loew-Cornell-Stylo-à-peinture-fine/dp/B004YZXV8U/ref=sr_1_2?__mk_fr_CA=ÅMÅŽÕÑ&keywords=lowe+cornell+fine+line+painting+pen&qid=1577900706&sr=8-2
anyone who researched intensively to do their own car detailing have found the brand Ammo NYC and it's founder, Larry Kosilla. He is my inspiration with using this touch up pen for my rock chips over any other method. He is showing this here in the below video (long, painfull to watch to some, but i love these videos
). Restoring paint on a XX years car with original paint that nobody wants to have repainted, that's this video. And although I obviously do not have an old Porsche worth tons of money, I want to get the most of the rock chips out of the ride, and that's my way of doing it.
I repair the chips using the pen, then let it ample time to cure and come back with my polisher and correct my whole paint. by doing so i also cut any over application of the touch up pen. That my own procedure, to each their own.
For the record, when it will be time, that my OG paint will be too shot to be corrected, when there will be more chips than OG paint, then at this point I will either A) repaint in the same color or B) Wrap IF I want to change the color of the car for a little while.
I tend more going to the repaint.
OP, if i'd were you, i'd fill in the imperfections, correct the paint where required (shouldn't be big, you just went to the SPA with that car last fall) and then install MAYBE a clear wrap over the most road hazard succeptible areas?? (hood, front bumper/fenders, etc.)
Make the OG paint as long as you'll be able to do.
my too long $0.02