Thanks mate.
Unfortunatley we ran out of time, so we had to take a punt as the factor was shutting.
We bought a 6PK1305 which is only 1mm out on your PK61306, sadly when we offered it up it came up short!
As the diffence is only 1mm out from your spare, I would thought the tensioner would take up such a small difference so something is off???
Could you show me a photo of the belt run please?
I've routed it logically and the only way I can see it would fit, but I neeed to sense check the run.
We're screwed now as everything is shut, so we may have to get a b&b

Many thanks, Dave.