It does sounds like a pretty fair deal, it's not a steal, but if it's really nice it's probably worth it. I would try for a couple of thousand more, it will easily cost you that for the electronics. That's super low hours. They probably went out a few times the first year and then it sat.
For comparison, mine does have GPS/sonar, VHF, awesome stereo, tabs, and step, but with F150, and an aluminum trailer. For this 2006 model I would be asking $42,000. It too is pristine, just like new. Replacement cost is well over $50K.
Saltwater launching the trailer is really hard on them. If it has disc brakes you're probably okay, if drum, plan on a brake job on the trailer for a couple of hundred, or about $500 to update to disc. An aluminum trailer saves about 400lbs in towing weight. They are surprisingly heavy on a trailer. A heavy half ton truck is minimum for a tow rig. My duramax is a bit overkill, but a real joy for a tow rig.
I would not be real excited about the F225 for the weight, but it sure will have get-up-and-go. You could sure water ski with that one! For the extra 100+ pounds you won't want a lot of other weight in the back, I would be more concerned if you normally have four people aboard. For a couple and a kid, should be okay.
I run a Kodiak 32gal live well right in front of the motor. If it's full and there are a couple of us in a rear corner netting or gaffing, we'll get water in thru the scupper. I do have a group 27 in each corner too.
Let us know how your sea-trial goes.
BTW, I spent 25 years boating in the NW. Mom and Dad had motor yachts, I had sailing yachts. Now I just like to go out for a day of fishing, or a harbor cruise, and the Grady is fantastic. Maybe I'll get a little bit bigger one :wink: The big motoryahcts are too expensive and too much work (for me). I sold a 42' Alden yawl when we left Seattle in '92. Moored it at Skyline in Anacortes. It was all wood, built in '58 in Oregon.
You're in prime cruising grounds! Pull it up to Cambell river and go for some Kings!!