Well, thank you for all your examles and advice. I've learnt a lot. As its looking like good weather at the field tomorrow I'll head up their as I know there are some experienced fliers up their in the mornings and I'll see what they say and if they can help me set up an engine if need be. I'll also ask them what they use as it may be easier if they use similar engines.

I may post tomorrow on what I find out and decide. I'll return here to re-read some of your advice too.

Thank you.