David, I think you will find you need to sort your priorities a bit more as you're mentioning a number of variables which to some degree are mutually exclusive. Having said that and having migrated across the Channel & up into the Baltic, I'd recommend sea keeping qualities, good sailing ability and structural integrity as your primary screening points.
The Contest is a wonderful boat for your area; I'm amazed you can find a C-HT or HTB in your budget. The Sadler 32's are a mix of owner-completed and factory-build boats and pretty basic in form, but I think they would make another good choice. I also recommend a Moody 31 if possible; she is a very capable cruising boat in that size range. Albin (Swedish) used to make a range of excellent sailing boats; in the size you are considering, the Ballad is fast, was strongly built, and is an active racing class in the North Sea to this day...which by itself is an endorsement. The H-R Monsun is another swedish-built, highly regarded 31 footer, tho' she may be a bit dear for your budget. However, H-R also built a 29 footer that looks very handsome and functional, and which we saw in some numbers.
I hope you don't take this to be a criticism, but were I you and considering the batch of boats I've mentioned, I would place my shopping efforts mostly in Scandinavia and the Dutch inland seas. Their waters are brackish (less corrosion), seasons at least as short as yours (so boats wear at a slower pace), and the general level of engineering and upkeep we saw from The Netherlands northward WRT all boats was exceptional.
There is a pretty active H-R owners association that seems biased towards the older/smaller designs at http://www.classic-hrs.com/
and there is also a British HR owners assn. which you can Google. Both might offer more info on specific H-R models, it that's the direction you go.
Good luck to you.