Might I ask a favour, how do you get an index up on the 'manual'?
More than happy to help, I just need to know what you mean exactly by "get an index up"?
The main page of that manual is down at the moment.
I did flick through the contents and found the page I wanted and just linked to the individual page. I did that because if I just grab the image from the manual, I lose the annotations on the image (although I could work round that and grab the image another way). After that I edited the image by selecting the are I wanted to fill in and saved that version.
As to putting up some pictures I will try but my computer skills are basic.
As long as you can actually take the pictures, we can work round the rest of the process.
Do you have to use a wiring loom hole? There are other holes in the bulkhead that may be viable alternatives, such as ones where the heater pipes pass though.