well small update, I had a good long look around the pedal box to see if I can make this work. and in short I cant.
so I have removed the front reservoir extended the original pedal, to give me more movement on the cable which should now give me fully open carbs.
So now I just need to relocate the reservoir pot, but it is so tight under there im not to sure where.
I was thinking to the other side buy the opposite bonnet hinge.
is there any issue running a long drip feed pipe?