I'm not sure there are too many libertarians and neo-conservatives who really talk to each other. I think there are many nuances between the two:
anarchist
minarchist - basically libertarian(ish), or fellow traveller
classical liberal
paleoconservative - think they're small government, or "libertarian"
neoconservative - think they're conservative, but basically fascist
To the point, the neocons are probably a waste of time, and a lot of paleocons are too. However, some paleocons and the first group probably have "hope."
To clarify, that's just "the right," (who frequently get tagged "neocon" by others) and doesn't include people who self-identify as "liberal," some of whom for which there is hope.