Starting my Windsor rebuild. Some rust and just wanting to look cool again as to a re-paint instead of original patina. Looking at mostly campy buildout. Work in progress.

you got one with extra nice paint (Orange Pro is a grail frame for most Acer-Mex fans) plus this has original decals in 'good' condition plus the chrome stay caps that they didn't come out with until "later years"...so i think it already looks cool!
my 2 cents: I'd keep things original, maybe replace the Columbus decal but then just some cleaning and minor touch-up, then give it a good coat of wax...

Trivia note: I didn't recall them having just 2 TT cable guides when the Pro started coming with those brazed on: a nod to Colnago , maybe?
Trivia question: does it have a 27.2 seatpost or a smaller size?

I agree with unworthy1 on this. The paint is pretty good and decals are intact. I wouldn't paint it. And paint for me is relatively easy since I have the equipment and experience.

Get some orange paint and an inexpensive brush or brush set. I like Testor's model paints but we all have preferences. Keep in mind that straight out of the bottle may not be a good enough match. You may need a bottle of red and/or orange and even white to get the tint right or close enough. My technique now is to fill the chip, then fill it a second time. Come back and wet sand it with 600 grit sandpaper with a backing block or heavy rubber backer so that it conforms to the curve of of the tube. Level the paint with the sand paper then go to 1000 grit.

Use rubbing compound on the whole frame, followed by polishing compound and then an automotive wax. I like Meguiar's for wax and 3M for the rubbing and polishing compounds.

That frame is going to look great. Then keep posting as you build it up. I'm going to guess that this might have some Campagnolo bits that are going on it kirkcampyfool .

Thanks to both of you for the thoughts, I hate the rust that will keep on growing under the paint, but now looking at how to deal with that and keep original paint.....