You would need much better technology than we have currently in order to make the cut-off time. So probably a superlightweight geared Coker.
As a team, it could be quite achievable- but you'll definitely need geared Cokers/29'ers to maintain the required average speeds.
Joe- that looks intriguing but I still think RAAM is harder because you have a support crew to push you. Some of these guys only get 1-2 hours sleep/day until they get to the other end of the country.