Got an extra $29 mil to spend ? How about your own Space Shuttle, a little used but in good condition ? Engines are shipped separately, but they're free. You just pay the shipping.
That's right, your choice Atlantis or Endeavour, pick one or take both. If you prefer, take Enterprise, Shuttle #4 that never made it off the launch pad. You may even get a package disount for all three. Assembly required.
NASA has the Space Shuttles up for sale, delivery date is Summer '11.