OK, what you have here is a 1973 Series 2 VC-160 Auto Drive, Code V136.
Series 70 MKIII Engine, with the G3 carby and Decompression "Zip" Starting.
If you need copy's of the gearbox service manual, the engine & Chassis Manual, or parts lists for this one, let me know, and I’ll bring you some copy's.
I'll have a dig around and see what parts I have here that might be of use to you.