Alright mate,
I should have just cracked on with this and gave you a hand today.
Anyway I would just wire the parking light into your ignition wire, that way the gauge is always illuminated when the engine is running.
All the rest of the connec tions can be found in your ignition loom under the steering column, nice and easy to get to, have fun.
Any probs you could have a buzz upto mine on Monday.