My cousin gave me a hand with the throttle spacer as i was using his garage. Glad he did as it was a fiddly thing to do
The actual install of the Meth kit itself is very straight forward... Bumper off, tap the washer tank, mount the pump to the chassis leg on the other side of the car, run the piping..... And that's it.
If you go for the basic 6-30 psi switch, the wiring is very very easy. I didn't even need to run any wiring in to the car. Chassis for earth, live from the supply to the fuseboard next to the battery, and the switched ignition live i took from the reverse light switch wiring.