The Legacy speakers might be of interest depending on the price. Also check out the older B&W speakers – are they 800 series models? If so, they might also be of interest. You'll have to listen to know. And you'll have to transport those large & heavy items.
It looks like the owner had powerful amps to drive them. If you want the speakers, look them up to find their power needs.
The Adcom GFA-585 amp has a potent 250 WPC rating. Here’s an
ebay ad for one, asking for $1344. If you want such a large power amp, if it works alright, and if the price is right, go for it. It's said to be a beast.
What looks like a Denon POA-4400 power amp (hard to read in the photo) might also be interesting. Is it a monobloc amp?
It’s rated at 150 WPC at 8 ohms, 250 WPC at 4 ohms.