I would not ask my wife to ride that far even if she could do it.Your trip will be NO FUN at all.I ride a lot my self and have done a few small trips.But I only go about 35 to 45 miles a day I want to have fun and see things not hurt my self with pain.Why are you in a hurry sounds like you have very little time to do a trip.So why not just go camping with her treat her well and don't try to kill her.Bicycle riding should be fun no matter what.My 2 cents.