Rear brake lines on an 8 3/4 question...

If I were a betting man, I'd say those are for a 7 1/4 rear. He doesn't say in the ad (at least I didn't see it) what size they are.
Unsure of it either, I asked the man and he hasnt replied yet. But if theyre what im looking for, Ive got no problem cleaning them up and painting them too. All of course if you guys say its good to do so