delericho
Legend
Eliminating himself and getting a 'master reset' was part of the requirement for getting out, as he already knew that it would take a ridiculously long time to effect his escape. He likely could have come up with a different way to power the teleport but given a finite area to work on it wouldn't matter if he'd had 2 Doctors, 20 Doctors, or an infinite number of doctors; they could only be so effective.
Two Doctors would definitely help - one to distract the monster and one to work on the problem.
But my big problem is that he didn't even try reprogramming the teleporter to take him back, but instead seemed determined to use the least efficient solution possible. Seriously, he decided to punch through a stronger-than-diamond wall at a rate of four punches every few days? At the very least, he should have used the shovel.