For ~$1800 you can find a pretty nice vintage frame, if you are willing to spend 9 months looking.
Actually, there are very few complete bikes that go for that much on the vintage market.
FYI, curvy stays were introduced by Hetchins back in the 1930's. At that time, cyclists weren't allowed to be human billboards, like they are now. In fact, many races prohibited you from even having the manufacturers name, visible on the bike. The curvy stays became the trademark of Hetchins. They were successful in preventing anyone from copying their stays when they received a patent in 1936.
In 1990, Hetchins was purchased by Bob Jackson. While it was subsequently sold again, Bob Jackson kept the right to copy the Hetchins curvy stays.
There is some argument that the curvy stays improve the quality of the ride, but it was more of a marketing tool than anything. That doesn't keep me from lusting after them.
There is a bigger supply of old curvy stay Hetchins over there than here. I would hazard to guess that, given 9 months, you could find one in your size, for under 900 Pounds Sterling.
You knew that was coming, since you posted this on the C&V forum