Well I’ve got there eventually ! A couple of things really helped. First the extraordinary video skills of Richard Briscoe showing me how it goes together, and then the Paddocks trunnion kit with the hard bushes. I’ve also assembled everything with tons of grease and I have indeed ended up using the full water shield and dust seal kit so fingers crossed I should be fine. Interestingly, with the Paddocks kit, the wishbone slipped pretty easily on to the trunnion bolt “tunnel”. I need to speak to the guys at Superflex as the flanges on their bushes are too thick, making this assembly exercise impossible. I’m feeling reasonably confident about it all now, and the trunnion bolts are well lubricated. Meantime I also attach a picture of my new patented tool - a micro grease gun made from a vets horse syringe provided by my brother ! Did a really neat job of greasing the insides of the bushes etc.
Thanks very much to you all for the helpful input as usual.