4.4 to a 4.6is motor, oh what a thing.

[Plattus1000]

(Originally posted as a question to the forum but quickly spiraled out of control and I found myself in the mix. Included you'll find some useful information about the differences between the two engines and some options for upgrading your existing engine be it 4.4 or 4.6is. I hope you find it entertaining if not useful..)

How would you deal with the bottom end of the motor?
I want to put a 4.6is in an e39. I haven't ever swapped a motor nor have I found good diagrams of the bottom end or axle drive assembly.
I'm looking at realoem.com X5 4.6is A5S440Z output - 4-wheel. This comes off the transmission right? The holes in either side of the lower part of the motor are just anchor points for the drive shafts arent they?

I appreciate any info/help you can offer.