What a beautiful frame! Not a randonneur, but beautiful nonetheless. It could make a good day-tripper, if you wanted to squeeze in the biggest possible tires, but I don't see a lot of potential for a true randonneur there. No worries, just keep hunting! If you're looking for a frame to convert to randonneur, you're much better off looking at 60's bikes. Almost all of them, even the top end racers, have generous room for tires and eyelets for fenders. I've also found they generally have much more relaxed angles than 1980's or even 70's bikes.