i think as long as you dont have any cracks and so on in the cyclinder you could resleeve, aus dollars its about 350$
There are pro's and con's with both nikasil plating and sleeveing, sleeveing pro being that if something does go wrong and if its not to bad you can bore it out and get a new piston kit and off you go again, cons for the sleeving being that its not as good at transfering heat and will not run as cool as a nikasil bore thus losing some power when the engine gets really hot.
pros for the nikasil are : it is better at transfering heat and will run better than the sleeve when it gts hot.
cons for the nikasil plating are: when something goes wrong internaly and you have damage to the cyclinder you have to get it re-coated which ends up being a very exspenive problem.
I'm considering sleeveing for my wr250(2 stroke) so its up to you what you want to do, i hope ive helped you :cool: