Rather than wishful dreaming look at the numbers. Probably forty percent of the electorate are broken glass Democrats. Giving you the best case scenario let us assume that twenty percent of the electorate are dyed-in-the-wool Republicans. Adding together the highly committed voters of the two major parties brings the committed voters to 60. So the third party ticket would have all of the uncommitted electorate just to tie Obama which would be almost completely impossible.
In addition to the statistics, the third party would have qualify in all the states and would have raise huge sums of money in a short period of time. Furthermore, one cannot ignore the hostility of the MSM to Palin. The MSM will absolutely do its utmost to destroy Palin. Conversely, the MSM will support Obama and MSM support has been estimated to provide about a five percent edge.
The numbers are the opposite of what you said. About 35-40% identify as
Conservative and 25% as liberal. Elections change sides because of turnout. There are a few that flop around in the middle. Conservatives have a definite advantage in national elections, but haven’t had anyone to be excited about for awhile.