Funny Kismet
I took my recently purchased dream car to a car wash to get detailed, and happened to see a plateless turbo with a bed extender on it. Turns out the car wash services a local dealer fleet, and this one had just come in the inventory.
I asked the manager nicely and got the dealer's number, and after a little back and forth will be picking up my OEM bed extender tomorrow!
Absolutely doing the upright mounting hack I've seen here before.