eBay and Craigslist finds

Apologies if this is a stupid question :) (i'm not an expert like most of you on here!)

Would these rims work with brakes?

Also would it be possible to use these wheels straight away (on my harry quinn track bike) or do you think they need a rebuild?

And finally how much are they likely to go for, there was a £275 buy it now option before people bid, are they worth that much?

Thanks

fuck, they should have been snapped up at the BIN price