I'm in the same boat as you, I've found it better to decide on a per component basis. Most of this stuff even after being listed will sit for months or more before a serious buyer comes along. In the mean time you'll get contacted by mostly scammers, tire kickers, and low ballers.
The kef Q60 and Q80 for example, as good as they are, they simply aren't desirable by vintage collectors, despite the fact you'd need to spent so much more to get modern stuff that out performs them. Not to mention, they're well known for tweeter issues, and Kef no longer carries replacements.
Those Klipsch KG4 as well, excellent speakers, especially in the quality and quantity of bass. They're very difficult to sell even though parts and maintenance info is so plentiful. They're just not as desirable as the heresys, even though IMO they're a better speaker.