Thanks crackerjazz and Avanaut for the comments, it really is taking me a long time making this kit.
Scratchy, the yellow highlighted part sort of disappears in accordance to the illustration in the Haynes book:
I made a rough version of the part & attached it to the lift,...to tell you the truth, I'm not that happy with the whole thing & am thinking of having another attempt at the thing (the whole lift & hydraulics)......I'll not scrap the current one, just make an alternative v2.
The Haynes book is very good, they did a lot of research from all official sources & ironed out as best they could impossible spaces.
John