I wouldn't bother with the SSR 2 if you are going down the Poorboys route. SSR 2.5 finishes just about LSP by PC anyway, so I'd go with the 2.5 and the 1. The Sonus products (SFX-1,2 and 3) in my book as staged products works better though. The results are truely stunning, hard work but well worth it.
Swirly 200sx and
Audi A3
The menzerna is also amazing. The PO106FF on it's own should tackle just about all the defects, it's a fantastic polish as it has a nice (light) amount of cut yet the gloss blinding
(big bonus is no dust also) If you find you need to step up the amount of abrasion, the Intensive Polish is the way to go.
Tired Honda Civic
I would highly recomend that polish on it's own, on a white SFX pad if you are looking to remove light swirls and creating as much gloss as possible. Whatever you decide though, start with the least abrasive and work up.
Cheers Tim