Ky, the actual FSP organization is almost irrelevant to actual activism. They put on porcfest, and the liberty forum (both great events!), but the actual activism is done just by like minded people in an area working together, whether it be politically, for CD, or otherwise.
That is, the point of moving to NH is to be around a lot of other liberty activists, so that if you or they have an idea, you can get the manpower together to get something done -- and so you don't have to build all your activism up from scratch, but can plug into existing efforts.
The FSP organization is not at all involved with activism planning or execution -- it's just a tool to get people to move.
Also, there really is no single description for liberty activists in NH -- come up with a description, and there's probably someone that fits it. There are rich, poor, politicos, civdis types, agorists, constitutionalists, minarchists, voluntaryists, etc, as well as all different personality types and levels of commitment.