Bit of a long story but an issue I have with the rpm increasing is being caused by a lack of a clutch switch, a component that would of been on my donor vehicle. After some research I have elected to add a microswitch to the clutch pedal as in the images below.

Ebay supplied the switch so I will try to replicate the setup above and fit a switch. This would be much easier if the sides were not on the car so we will see how we go.