I have the DW15 and I personally think a 40 is too small for the 17. A 60 or 75 would be better. Once on plane you'd be fine but it's slow to get up. Before I dropped the pitch on my prop with 3 people it was slow to giddy up.
Another item, I believe the 17 is the same as the 15, just slightly larger. The hull isn't designed to cut through wake well. It's more smash and bang when you get 1'+. It's Perfect for bays, rivers, etc, but sea ducking out in wake might be rough. Honestly a Deep V aluminum boat would be better- like a Lund . Someone else can verify. Side note Ken: I think there's a DW17 in CT owned in Haddam. Jim Bucko maybe
Things to check that I had when I got mine:
console status. mine was shot. Had to rebuild.
Floor, since it has the permanent seats. Water intrusion sites. My floor was soft near the seat mounts. Not terrible, but it's there. Might be worth bringing the boat to a scale to see if any foam is wet.
Wires- nothing was wrapped. Top shelf decoys would pull out wires. Easy to fix, just work. Electric panel was junky, I swapped it out. Added master switch, and fuel filter. Nav lights also worth checking.
Blind- my boat is an 04, blind was pretty shot, test it. Put it up and down. See how UV degraded the fabric is. Check the lid too.
Hull- bottom,no issues here unless they beat the crap out of it. Easy to fix. Where the rub rails, handles, steps, etc are, I had water intrusion. Always wondered why there was water every single hunt. Got on my stomach and 5200ed every single bolt. Pita to do, solved problem. Henry is smaller than you, have him do it.
You can hunt 3 in the 15, it's tight. 4 will probably be max in the 17.
All aside, I love the boat. Mine cruises at 33 when it gets up with the 4 stroke 40. Again, I use it sea ducking, but I wouldn't take it out very far unless it was calm. It may be harder to hide, but I can attest it only draws 6" loaded.
You're welcome to crawl inside and out of mine before you go to NJ if you want, not much difference than size. I even have some extra #37 paint if it's the original color and you need some.