I wouldn't worry about paint, car is tidy enough to run it , I'm no expert on paint, but I'm sure I can hold your hand and get it looking smart, you'll have next to zero filler/prep if you leave panels as they are, keep how far you need to go to a minimum, lower rear quarters are probably your only area, filler area might be a twat as it's up in middle of panel, red will never match.
I'd agree with Clarky above , don't start filling and priming if you're gonna farm paint out, they won't touch it, or just charge you more to rip it back, my mate always painted my cars, told me what he wanted and what to use, but buck stopped with me , no guarantees......but he's chucked it in , rent, energy bills made it not worth it.....so now I'm paintmanless.
Buggernuts....