The bike fairy brought me this years ago...
For me, it was a blessing. But I curse myself for being dumb enough to sell it! As for the Peugeot...
Looks to be a pretty entry level bicycle, to me. If you can get it road worthy for little or no cash out lay, do so. Then, without spending one cent more than is needed, test ride the bike, ensuring that it is safe to ride.
Once test ridden, you can decide if the ride quality warrants further expenditure of time, effort and, of course, cash. If it does, my guess is the bike will accept a fairly wide tire.