I think it'll honestly depend on the actual condition of the boat as well as the motor. I'd have a certified Suzuki tech look over the motor and make sure it's in the condition it's advertised to be in, as well as have a surveyor inspect the boat for damage, rot, other issues, etc. The boat is 35 years old and if the transom or something else needs to be completely replaced then that could cost upwards of $10k, depending on location, severity and so forth. Worth case scenario would make me think you could sink another $10k-$15k+ into this boat after buying her, which would make me ask the question of it is it worth it? I look at what I paid for my boat at $26.5k and if you did have to put say an additional $10k into the boat you're looking at, putting the total at $23k, then I'd personally say no it's likely not worth it. A couple things to note about a 1988 vintage of Grady White would be that it's going to be a SeaV1 hull as opposed to the newer SeaV2 hull, of which the SeaV2 hull is what they still use today. The SeaV2 hull is going to make for a smoother, drier and more comfortable riding experience as opposed to the SeaV1 hull and in 1997 I believe they switched from using standard marine grade plywood to a product called Greenwood XL. Of which the former is going to soak up a bit more water and make it more likely to rot as opposed to the Greenwood XL. Not saying that the latter can't have issues with rotting, because I've definitely seen a few issues on here from owners, but it seems to be a better product from what I've read up on it. Depending on what your intentions are for the boat, you might not care about it being a SeaV1 vs SeaV2 design, which is completely fine. I think as long as the outboard and trailer check out, you'd likely break even hopefully at the very least at the $13k asking price. I think just about anything much above that price range is going to put you upside down rather quickly depending on what all might actually need to be done to the boat to make it seaworthy. Either way, good luck on the boat and add a few more details like your location, budget and so forth so that others can help you potentially find what you might be looking for, or maybe even a better alternative.