A number of people have suggested doing the tour in sections. While this is something I would consider, my current vacation time is spent with my wife. She has 2.5 months off each summer and a week here and there. But I usually have 10-12 days during each summer and maybe a week during Christmas once every two or three years. I also take 2-4 long weekends: two with her, one quick return to family in Long Island and one bicycle long weekend trip for me. My bicycle long weekends have been two different short tours, 6 Gap in Georgia, the Bourbon Burn in KY, Ride Across Wisconsin and the GFNY in New York.
But I can't justify going for a week by myself with only 1.5 to 2.5 weeks off all year while my wife waits for me back home, nor do I want to right now. I also have to go to two 3- 5 day mandatory conferences a year that take me from her as well. Now if I could just hypnotize her into wanting to do bicycle touring, I'd love that. But she knows I want to do this, and has accepted that this will be done upon my retirement as long as nothing imperative gets in the way.