Megs #80 works great for me on minor-moderate swirling, but I've only applied by PC and did some "spot" fixes via hand. I don't think I'd want to remove swirls over an entire car by hand using any product. Don't bother wih #09, it's kinda lame.
You said you wanted to apply multiple coats of FMJ and P21S... if you can afford applying multiple coats of those, you can scrape together the $$$ for a PC. Products, especially LSPs, are only a small part of the results. Plenty of folks here use high-buck stuff, fance boutique products that cost several times what OTC products cost. And even the best guys here have said that they can get great results using OTC products assuming they go through the proper steps.