The fitting kit arrived today from
https://www.hubauer-shop.de/en and the camera came from the breakers yard the day after I ordered it.
The breakers yard had damaged the handle a little - looks like they tried to pry it out first without getting to the back to release it properly, however the camera looks perfect and thankfully the fitting kit, as Padraig confirmed includes a new handle included.
Progress so far is that I have fitted the camera to the new handle!! - baby steps.
Looking at the weather that well may be the height of it for today.
Are the attached fitting instructions the best or most up to date ones to follow.