Some more research has turned up the following.
"The current record was set in 1995 and stands at 58 hours and 44 minutes. It involved flying on scheduled airlines through what are known as ANTI-PODAL points, that is, points on the earth's surface that are exactly opposite each other. The Guinness World Records rules state that the journey must include the airports closest to a pair of anti-podal points, must start and finish at the same airport, and must cross the Equator."
It also appears a UK based charity team is planning on doing pretty much the same thing I am planning, starting March 18 this year
Although their format is different, recruiting a team where I plan on doing it myself while focusing on sponsors to help with tickets. Good luck to them but I still plan on doing it next year and trying to break either the existing record
Ozzy