Just seen this on UK E-Bay:
Item #300449000775.
5ltr. Shell original full-synth. atf fluid type M-1375.4, repackaged by Smith & Allen from 50gallon Shell drums.
Price: £89:75.
Location: Darlington, UK.
Leedsman.

 

Looks like they are kosher http://www.smithandallan.com/
Perhaps we should nominate you to have a drive down and check it out.

The site lists a 209 litre drum for £891 = ~£4.25/l ($6.35) it certainly seems like there is a massive mark up (rip off) involved when it is rebranded to Jaguar, BMW, etc.

Now I just need to find a supplier in AZ.