Just tell your boy to run as a Libertarian. He couldn't stand the lack of attention, but it would be the honorable thing to do. 
12 term Republican, who never never held elective office on the libertarian banner... but its the honorable thing?
Yes, makes perfect sense.
Anyway, no one really has that much of a chance at third party. I mean... how many 'independents' are elected representatives at the nation level? Less than 5?