Drivetrain - Part 1
Started with the transfer case.
The support gets M2 nuts as spacers to the frame.
And it attaches here
The transfer case comes with 3 M8 screws in place that need be replaced with M10 ones.
After initialling the spacer nuts on the support, I tried to fit it, but ran into difficulties ... Remember I had moved one of the tank supports one hole to the right. It now interferes with the support.
After replacing the M8 screws on the support with one with a smaller head, and grinding a bit off the one holding the tank support, it fitted. Easy solution.
Support in place

Transfer case screwed on.
Next the motor/gearbox
The motor has a thread and screws into the gearbox. It is held in place with a grubscrew.
In the kit they supply a support for the motor/gearbox. (the big stainless contraption) This is not needed in this truck since the support is part of the frame of the hook mechanism.
Luckily for me I remembered reading in Christian's (Newcomer_2) thread on the
German forum that for this truck you need to use a special spacer (the small rectangular bit) which comes with the hydraulic parts.
Because this spaces is about 3mm thick, I replaced the recommended M2x6 countersunk screws with M2x8 ones. Have to be careful because the hole circled in red. You can block the gears if you get too long a screw in there.
Because the frame I have is not foreseen for countersunk screws, used regular ones.
Installing this unit with that spacer "floating" around was an absolute pain in the neck ... but eventually I got it sorted. According to the instructions, the motor needs to be grounded to the frame.