Dimillo's is the place ...the seafood is really good. The Dimillo family are great folks.
Dimillos is a great place, and great setting, good Spiderman advice.
Okay, I took a look at the motel. It is very convenient, just over the line in Kittery, right on route 1, sort of in a residential area, so its quiet. It sounds like thats about as long of trip as you want with this group and the closeness of it to the NH border fits the bill. They are older bungalows, had the guy show me one and following are a few pics. They appear to be clean, have a kitchen area, quiet. I dont see why that wouldnt work for a bunch of guys on the road.
Weathervaine is just down the road on Route 1, literally about 3 minutes away, and that might also fit the bill for you. Its a very large weathervaine restaurant and appears they would have no trouble accommodating your large group, I would of asked for you but they were closed. The outlet store part of the place shouldnt hinder your decision, as its a big job you took on here and this may satisfy the needs of the group. Then just drive up Route 1 for a great trip to Kennebunkport as described in earlier posts.
The two restaurants you have posted, I havent heard anything about them, but york is a very short trip up the road.