Perhaps I need to be more clear -- I didn't really tell you anything with that post, lol.
The player spawns a vehicle -- usually the TARDIS vehicle(that part is not mine, see the post 2 above me)
Next, the player finds an unreachable spot in the staticmap--usually underground, and builds the interior of their TARDIS. Then they event a door Player > TARDIS_Exit. Then they stand at the door and type /savePosition, then find the vehicle spawn, type /linkTardis and click it. After that, all vehicles on the spawn will teleport you to their interior when clicked, and teleport you back outside when the door is clicked. I also have TARDIS_Cam and TARDIS_Control which are pretty self-explanitory, one lets you see the TARDIS exterior from an orbit cam, the other lets you control the TARDIS, and when you quit controlling it, it puts you back where you where.
Contrary to Thor's post, you can move/fly the tardis wherever you want and it will work fine with teleportation, even if moved after entering.
