Need advise ASAP
 

I bought a 2010 Legacy Gt with 103800 miles. I took it to a mechanic to have timing belt done. They got the wrong water pump 3 times, and have been waiting for the right one. They supposedly had it overnight last Thursday. It's not here and I've got to drive the car home to Denver from Orlando. If I don't then I have to drive my 4runner and then come back in December with 4runner and drive back again in the Subaru.The car is under millage but way over 8.5 years for the timing belt. How risky is the drive?