With Ł10/15K budget and your wish list their will be certain compromises to make........the first one will be on the word "Perfect"

As no "perfect" boat I will only suggest the one........Westerly Renown / Longbow. (same boat - 1 with small aft cabin / 1 without).

A touch over 30 foot and sail a lot better than they look. A trade off between liveable space (IMO plenty of Light and a seperate sleeping area are important as well as a decent galley area) and still being able to sail.

This one will IMO give you an idea of what you are looking at with your budget for the size of any boat....the minimum is that TLC will be required, on that budget should be perfectly useable for at least day sailing.....but expect / need to spend time and money on her.....just as a wild guesstimate, yer could spend another Ł10/15k on making her A1 for going anywhere, but she still would not be worth more than early Ł20's.....but if yer living on her and spending the Rent money on her over time and YOU intend to get the use out of her from the money put in then this may work out as a good idea.

Westrely Renown - Ł15k

This one is another Ł5k and yer can see some difference on the TLC required front at least - but may well be that the fundamentals are pretty similar in needing money spent.

Westerly Renown - Ł19,950

IMO the biggie on both the above (and any other - especially on an older boat) is trying your best to ensure the Engine is not going to need replacement or major work anytime soon (or at all!).....but never any guarantees on that one.

As always, the more money you have the more options - in your shoes I would prefer a budget of Ł20/25k as will open up a lot more boats in good all round condition - of course not to say that every boat for sale at these prices are in "good all round condition"

, as always, it takes time to find a good 'un at the right price.

As I said, nothing "Perfect"....I am sure folk will suggest plenty of other boats that may work - and perhaps best not to get overly hung up on the model but to buy the best available given your budget, even if this involves some different compromises than you had intended (boats are all about compromises!).