Have a look at the Memory 19 with cabin
There have been many good suggestions and I am extremely surprised to see how small trailer/sailers hold their price. I have seen big boats for sale cheaper but they are not really suitable for what I want. It looks like next season sailing our Wayfarer and having a look around at the same time. The shallow draught boat is the ideal for us and rather than a tent we would like a cabin now we are getting on a bit.