False, don't drill the door at all.
To invert it you need to flip the carrier, use the load spreading bars as a template to redrill the middle holes in each side of the carrier. Before you bolt it back in you will also need to move the wiper arm by 1 spline to clear the carrier, or grind the carrier a little to allow some clearance of the arm. Bolt it together and put your tyre on it.
This setup will take 255/85's, 285/75's deflated and also Simex 33's.