Wanted cheap used QR wheelset 135mm rear , disc compatable

My Specialized hard rock commuter has finally succumbed to the salt air living across the road from the beach and the cheap SS spokes are rusting and snapping so I am looking for a CHEAP replacement has anyone upgraded their ride and been left with a wheelset gathering dust in the shed ?
Can be low rent no frills as long as the bearings work and they are reasonably round
cheers
p.m. me