I had thought of running it like the Next 1,000 pledge at pledgebank.com/Next1000 In this case, The 300 would include:
1. FSWers who had already moved to Wyoming
2. Folks who will be able to move by a certain date, or within some time (seven years) of signing the pledge
3. Locals who had become superactivists who had been exerting efforts equal to the difficulty others had faced in moving out to Wyoming.
4. Perhaps Montana folk (and folks in adjacent states) who, nevertheless, are helping out tremendously with the Wyoming effort, though not sure about this one if they don't live there year round...
#2, in my mind is the hard one. pledgebank.com tends to adhere to deadlines, which are good for getting folks on the ball at the last minute. The worry that the deadline could pass caused a lot of us to get on the phone and email everyone about the First 1,000 pledge out here, and we just barely managed days before the deadline... but it really helped FSP-New Hampshire. Pledgebank is great for getting folks to agree to do something in the future, but makes the pledge binding only if they can join 300 other folks who are engaged in the same effort.