Check gunbroker, there's always old PPC guns for sale there at reasonable prices. Even though most have had a ton of rounds through them it was usually light target loads so there wasn't a lot of stress on the frame and they've held up pretty well. They're usually DAO with light, slick actions and very accurate shooters. I see no reason one couldn't be used for general range and plinking fun and home defense, though most are impractical for any sort of carry.
“Never give in. Never give in. Never, never, never, never—in nothing, great or small, large or petty—never give in, except to convictions of honour and good sense. Never yield to force. Never yield to the apparently overwhelming might of the enemy.”