What is particularly frustrating is that the extended version of the film received a new remastering a few years back for a limited theatrical release in the UK, yet has never been commercially released anywhere for home video.
I simply let this version be the Euro/UK version as it is released
And then swapped the disc in the German Steelbook with a disc from a U.S. Amaray version (which can be had for very cheap).
...and now you have both versions in steelbook- simple!
Labeled the Steelbook-Central clear slips appropriately...
PLUS: I inserted my own inside art on the German steelbook-
I did a an image flip-flop, which I think works well.