Thanks Wouter, I lost the original thread question some how I could never find the question or answer!
I was thinking about cutting up a F18HT, they are for sale here in the US for about $8,500 with trailer, box and beach wheels. Cut a foot off the front and back, cut the mast down, re cut the main sail and spinnaker, but it would probably end up costing as much as buying a new boat and I don't know if you would be down to 230 from 280. The width (2.5M) is the same for both.
When I had my HT I always wished I had a shorter mast/mainsail for the windy days sailing alone.