The flight scheduled for Tuesday will now be carrying the youngest person into orbit, and the oldest. 82-year-old Wally Funk was older than Oliver currently is, when she first trained as an astronaut in the early 1960s.
Joining Daemen and Funk will be Amazon founder Jeff Bezos and his brother Mark aboard the spacecraft named the New Shepard.
Oliver - or at least Oliver's father - will be the only passenger paying full freight.
The flying Dutchman is a keen amateur pilot and is working to obtain his licence, after returning to earth, to take up a place at the University of Utrecht.
The space flight won't count far towards his flying hours.
Lasting not longer than 11 minutes the joyride to the edge of space works out at roughly $3.64 million a minute.