Unless you are going to be a fair-weather fisherman, or doing this for fun (non-commercial), I'd also suggest a totally different kind of boat. There are plenty of decent 28-36 foot built-down Downeast boats on the market right now. They can be expensive, but one that isn't fancy inside, and is a few years old can be a great buy. I don't think that you'll be happy with a Parker, any Parker at all, in the usual conditions out there. I've been out extensively in Mass Bay and GoM in a 42' Wesmac with first an 800HP 3406E, then a 700HP 6140 Lugger, and most recently a different hull with a 600HP 3406C... there have been many times I wished for a larger boat and more power. It gets snotty in the GoM in a big hurry. Our next boat is a 55' Wesmac with a C18-1000HP. That should do the trick.
I'd check out a small Duffy, BHM, or even a well-taken-care-of Bruno. Sure it'll cost more than a Parker, but it'll get you there and back in relative comfort, and provide a higher degree of safety.
If you are just a pleasure-boater, then ignore my advice. If its crappy, you aren't going to leave the dock, if its supposed to be bad, you won't leave, and if it gets snotty, you'll just turn around. Commercial folks don't really have those options.