Great to hear guys. I also have the 1-2 hard shift when cold on the 4.4 and on the 4.8 not too bad but it's there. I will change the gaskets and I hope that fixes it. I added the part numbers. As far as I could find, other than the four tubes all are BMW parts.

new filter BMW part:
24117543550

new oil pan gasket, BMW part:
24117543484

New metatronic seal (round electrics plug seal):
24347588725

valve body seal - BMW part number:
24347588727

4 tubes within trans (BMW) - from the ZF catalog you posted. I believe these cannot be purchased from BMW, only from the ZF transmission parts supplier?
2x BMW 24107519314 ZF 01.050
BMW 24107519315 ZF 01.060,
BMW 24107520715 ZF 01.064

Note: I found and added the BMW part numbers for the ZF SEALING SLEEVE

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4.8is 2004 imola red
4.8is 2005 Black on Black - DINAN/2 sold
4.4 2004 X5
2003 330xi
2008 328xi - sold
4.4 2000 X5 - sold