Well Andrew i did it your way
and it was a excellent idea.
Did a focus on the Moon at dusk and set the Camera to all required settings, left it in the shed to cool down over night, went out at 4am turned it one and was imaging withing a few minuets.
Perfect and no stuffing around to try and find focus in the dark.
300 plus images later (although short) they all looked great, now comes the fun part, but i will do that later
Thanks mate, that is the way to go from now on.
Leon