It will cost exactly 50% more than you expected, and about 15% more than the maximum you can afford!
The question you ask is probably a little too open to give a realistic answer.
A 1975 34' live-aboard boat might cost as little as $25k
A 2009 38' live-aboard boat might cost as much as $400k
If, for the sake of argument you were to buy a 25 year old 35' boat in reasonable condition, you might get one for, lets say $40-$50k. This would assume that structurally the boat is sound and the rigging
is old, but sound. If all the electrics, electronics
were original, you could probably spend another $40-50k refitting, and that doesn't even include sail wardrobe. The above figures are +/- 200%
Really, you might as well ask how long is a piece of string. A better approach might be to figure our your maximum budget
, and then assume, say 50% of that on the purchase
of the boat (the other 50% being to cover refitting / sails
, etc), and see what you can find for that figure, whatever it is.