I've one of the original Berghaus Paclite jackets from 6 or 7 years ago, and still regularly use it. Never had probs with it not being waterproof, and it's light weight (compared to full goretex) and breathes very well. I rate the paclite trousers too, excellent to shove in the pack just in case.
Munros, not Munroes of course. I'd agree that Knoydart's a super area and there's a few Munros there that you could knock off in 5/6 days. Also good is Letterewe, Fisherfield area with plenty of wild camping opportunties.