Engine Mounting Thrust Adjuster Socket Wrench

While removing the engine, I've come across a nut named the "Engine mounting thrust adjuster lock nut", which requires a "Special Tool" called 09940-14980: Engine Mounting Thrust Adjuster Socket Wrench. What is this tool? Lord only knows where I can get one, it's probably 6 week special order, I'd hate to think how much it'd be worth. So bugger it, time to get crafty and make one. I've purchased a 1/2 drive 13/16th socket for minimal cost, marked it up, and with a steady hand - got grinding.

The nut:

Texta it up:

Ready to go: