Hey Jake,
When are you looking at coming out? I used to hunt up there every year, it is big country with low deer densities. I used to hunt a lot in the area of Big Brook Bog off of Route 3, and also off of Indian Stream Road.
As far as land goes, it is pretty much open to all. In New Hampshire, if it isn't posted or you aren't told that you can't be there, you are all set to hunt it.
There are a couple of other places I can help you out with, just let me know. Maybe I can even come up and hunt a day or two, it would be nice to get back up there.
David