If the FSP can't or won't drop the 20k requirement. That is when people should seriously think about starting a different group to accomplish the goal of getting more Liberty minded people to New Hampshire.
I would recommend membership be left open to people who aren't just part of the 100% Libertarian group. So I would say yes a Ron Paul type should be allowed to join even though they are only 80 to 90% there. If you leave it to just the 100% people your recruit pool is only 4% of the population. You would be excluding people like Mark cause he isn't in the 100% club of Libertarianism.