Odd, as the MK-II carbs I had were totally different spacing. (and if you check bandit forums etc they also comment on different spacing)
Same port spacing, but carbs are spaced differently and use totally different Carn rubbers,
I thought I had the one off the Old Debben website in PDF but cant find it.
The Link that @fatblokeonbanditposted is pretty much the same procedure that was on Debbens.
I made my own positive stop, worked OK..