Its not really documented. I used the drivetrain from a 2005 LGT ( rear diff, drive shaft, 5MT ). All my CVs worked just fine in the manual car. Being a 2005, this was probably the easiest year to swap as they were basically the same throughout the world.
I bought the MT transmission connector from iWire and adapted the T9 connector to the 5EAT connector. This got my Neutral safety switch and reverse lights to the TCM connector under the dash, and that gave me a straight shot to the ECU. In the AT cars, the TCM gives the ECU the start permissive and it triggers the reverse light relay. So with some quick jumpers I was able to get that all working as intended.
In the center console I had to short the key lock solenoid switch, this usually came from being in P on the AT shifter. Then I could release the key from the ignition.
I then reprogrammed the ECU with a EDM version of an H6 MT car, killed the few codes I didn't need and BAM, it seems everything is working as intended. No CAN errors, cruise works, high lift works, AVCS works. Not sure if I had any readiness monitors yet, but that's my next investigation.
Hardest part was doing the mechanical work on my back in the garage. The 5EAT is HUUUGE and HEAVY (I'd guess 300lbs), and I had to make an adaptor between the 5EAT transmission bracket and the 5MT transmission bracket. I did this differently than most, but so far it seems to be holding up? I don't plan on doing any clutch dumps so its likely fine.