I was actually thinking about this idea the last time I travelled off the beaten path, and I believe it has a lot of merit. But it needs to be done in a very user-friendly format (e.g., with calendars to select the travel dates, and a function that groups together all destinations that are within driving distance of each other), and would require a lot of legwork (and possibly money and advertising) to get enough people to know about it and use it, since the success will totally depend on how many people are using it.
There actually already is a function like this called "Temporary Minyanim" on
www.godaven.com, but it is not very user friendly and very few people seem to use it. That being said, it may make sense for someone to partner with godaven, so this can be done on their website in a way that would attract many more people to use the function.
As far as finding people to help/support an initiative like this, the people who would benefit most from this are those whose work requires that they attend many conferences throughout the US. So I would reach out to anyone you know who meets that description, and solicity their help.