The hull is rated to a maximum of 200hp per the Grady White website. That being said, it also says the weight without the engine is 2,075lbs and if you figure in the engine weight I'd say it's probably close to 2,500lbs or so. I know it's not exactly an apples to apples comparison but I had a 21' Arima with a Honda 130hp 4 stroke on it and weighed over 3k lbs yet would still get up to 35+ mph with that motor. Unless you really want to go north of 40 mph, I don't see the "need" to have a bigger motor if you don't have to have it. I think the seller is definitely a couple thousand dollars higher than what the boat is worth but there are "similar" boats out there that are similarly priced. Like the one I'll link below, even though I think it has a better motor, and it definitely has a nicer trailer.
To the OP, I always recommend having a buddy, family member or friend that knows a bit about boats to come look it over with you, at the very minimum. I always recommend to anyone buying a boat, and generally always do so myself, to pay a surveyor to come out and inspect it with you, especially if you don't have a friend or family member to do so or you don't know enough about boats yourself. A decent surveyor will cost between $500-1,000 but they can tell you if there's any damage, water intrusion to the hull, they can do a compression check on the motor and do a sea trial run with you if you put an offer down on the boat. I personally always try to get one with any boat purchase that I do as it makes for much better peace of mind when purchasing something. And oftentimes you'll have stars in your eyes and not see what could be some pretty serious issues that the surveyor will definitely notice and pick up on. Good luck with your search.
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