Hi Megabux, I've a '91 T1100 camper and I've searched high and low for a manual too. Haynes never done one and the only book manual for the old Trafics is published by Peter Russek Manuals. I bought mine from Amazon. It's roughly half of A4 size and is a cross between a Handbook and a workshop manual. There's not too many diagrams and the text and data only covers the outlines of the major jobs. You'll need to be reasonably proficient already to tackle the bigger jobs and some things you've got to figure out for yourself. The wiring diagrams are so cramped and very difficult to follow along a whole circuit.
I also bought an on-line version from the web for around £20 but it seems to be another bootleg version like those awash on the auction sites. Again sketchy on data and information. Conned again
No other publisher (eg Autocar manuals etc ) has done a paper manual either
My engine (1.7 petrol) was originally used in the R21 before Renault fitted it to the Trafic vans. I managed to get a Haynes manual for a R21 which only cost £2 so at least I have data and diagrams of the engine and carburettor, and some of the wiring would have common elements too.
I don't know if your engine / transmission etc was used in one of the car ranges too or if its purely a commercial vehicle design.
With Renaults you have to use lateral thinking :crazy: