So I've long wanted to have a Ranger. But because of the issue where these didn't have their own reference numbers for most (all?) of their life, its hard to distinguish these from redialed Oysters and Oyster Prince models. For me it boils down to how tolerant are you that your vintage Ranger is a franken.
Since I already have a nice Explorer, the itch is mostly scratched, and I'd get a Ranger only if I had a high level of confidence that it was not a franken. Red Rangers are definitely out - most people say they are all fake, so why even take the risk in the small chance it's not? I've passed on at least 2 Red Rangers. I also had the opportunity to get one that could have actually been a Ranger, but the reference number was poorly engraved on the case, and the color of the movement was off. This could happen. In another thread on WUS, I did an analysis of Big Blocks where the reference number engraved between the lugs went from terrible to good during the 90's (multiple time periods, multiple owners) - so the darn Ranger could have been legit, but again, I needed a higher level of confidence. If I didn't have a 1016 already, I would have jumped at it. It was sold 2 days later to someone who had more tolerance than I