I'm not an "expert" on European spec'd Peugeots (or any Peugeots for that matter) but since that appears to be a Reynolds frame label, I'd venture that this is a pretty haughty model - like a PX60 maybe, from around 77-78 based on the catalog photos.
It is difficult to place a value on it for your market, but considering what the better Peugeots bring here, and with all the very nice accessories and superb condition of your bike, I'd ask $600 for it if I were to sell it on eBay. (I'd put some more dignified Tressostar black tape on those bars first though).
- With any luck, I would not be surprised if went a couple hundred more.
(I'll be interested in what the real experts here have to say.)