Renault manual
We used to have a Renault Traffic high top works van, we put a new engine in it. I am pretty sure it was a Renault 18 engine with different engine mounts. It was identical and was an easy fit. Me thinks you need a Renault 18 manual, they can be got in Oxfam book shops if you look really hard. My last manual there cost £2 for my Series 2a Land Rover. Hope that's of help !