James & Duncan, my thanks to your replies and further insights into my question, it is apprciated.
So which autoguider to choose from the QHY5 or the Orion Star Shoot Autoguider?
So really Duncan doing what I am considering to do, the only thing I would need to look out for would be coma ???
Oh yes by the way thankyou for the

it is appreciated.
As for the light pollution

, no problems there