Thanks for posting this as even though I'm a beginner, I've got big ideas !!

Once I've discussed this with my other half,I plan to put a permanent mount in the back of my garden, slightly lucky i'am away from street lighting but will have to have a chat with both sets of neighbours regarding their security lights- damn nuisance at the best of times ..........

Regarding a suitable scope for this, would a 10 " be sufficient for my needs and I'am guessing at least a HQ5 mount??

yep ive just done this, and behind the conifers there is a halogen light coming on and off!!! not happy. and a told you so off the wife!!

Now if you had made provision for a bolt to be set in each corner of your concrete base and an angled metal strut bolted to the base and also to a plate at the top of you scaffold pole, it would finish looking like a skeleton pyramid, it would have killed the vibration and it should be very solid. just floating this idea for anyone els wanting to make a light but strong garden mounting, without putting in a big concrete/metal central pillar :)

John.

yeah not too bad now with the pipe over and loads mor concreate in.