Need 20 - 25 foot spk cables.

but then again a long run of preamp to amp cables would be pretty pricy as well.

Not true. I am going to run long interconnects (maybe 20-30 feet) and I do not expect to spend too much, somewhere from $100 - $500. I also do not expect to suffer in sound quality with the lower cost interconnects. I tested this scenario out with some Benchmark gear (which supports the balanced AES48 standard) and I could not tell a difference between expensive Audience Au24 interconnects and cheap Bryston XLR (Canare?) interconnects.

http://www.aes.org/publications/standards/search.cfm?docID=44

https://www.takefiveaudio.com/

Running long speaker cables has been something I was told by a few manufacturers and dealers to avoid. I will get a high end short speaker cable and a much lower cost XLR interconnect between the preamp and amp.

just happened across this 22 ft pair, don't know anything about them

https://www.audiogon.com/listings/lis9i5j4-wireworld-mini-eclipse-8-speaker-cables-speaker

@gammastrep if you can afford moving the amps close to the speakers the balanced interconnects from the preamp or source are not expensive, you don't need to go with special balanced cables, if you're equipment is balanced and differential take advantage of that.
In some cases geometry (or the wife) works against us and you can't separate in which case then go with long speaker cables.