I'd go about 8,000ish depending on how well the car has been maintained, you should be able to get the vin and look it up at a dealership to see where and how frequent its been serviced and for what. How ever when you get The Prelude your also getting a few things you don't really bargan for, for one its shock knock that never seems to go away and all the heavy car jokes which it okay too. The SH is nice if your only doing mild performance gains otherwise you maybe forced to eliminate the SH part by taking it off the block and the trans, and basically convert it to a base model. Do you have some pictures of it? What color is it by the way?