If the two of you share the cost equally you can fly around the world and advertise that you are looking for someone to this with and it is not commercial flying. It happens all the time. Such as a FBO or private individual who will rent their twin to two people to build time. This used to be for a Duchess or Seminole and it was $5000 per person for 100 hrs or $10000 for two people. Here is how to double the fun! Fly under the hood while the other acts as the safety pilot. You both log PIC as one of you is the sole manipulator and the of is in charge of the safety of flight. Have fun and land a few odd ball places along the way.