Speaking of raising cash, the Harbeth M40.1 are 14,000 bucks.
Which is why I have Compact 7s.
Looking on Audiogon, a new pair is $13,000 and a used pair can be had for a lot less than that. 40-50% off, and we're talking about a $5,000 int-amp.
[Note to my fellow mods, no one is talking about selling or pricing an actual pair, just strategy on upgrading.]
Before I'd spend a lot on a int-amp I'd clear out some stuff and use the $ to trade up the speakers to the 40.1s. They were magical, IMHO.
Once I had the magic speakers in place, I'd re-evaluate what gear should go with them. I suspect the 40.1s can use more power than the 7s.
I always worry when someone starts upgrading their gear before they max out their speakers. As soon as they upgrade their speakers to their max level (limited by space and budget, etc), they go through another round of costs to get the gear right for the new speakers. Max the speakers first, methinks.
I have a lot more fun switching sources, anyway.