[ZeroID (Brent)]

Hi NightStalker, thanks for the info. I'll check out the GSO possibilty. At present I'm thinking I'll just contact Bintel in Australia. Close and prices seem comparable.

Also you have given me an idea about the focusser. I was leaning towards building my own crayford (I have a reasonably equipped workshop including a small lathe) when I realised I have several old video projectors which have helical adjustments on the lens arrangements and quick levers as well. I might pull one or two apart and see what I can make of it. They have quite large IDs in most cases and I can turn up adapters etc from other resources.
If I can build one I'll document it up. Goes under the 'Frugal Astronomer' category but also fun to build or adapt stuff from scratch.

Excellent !!! more fun in the workshop !!

I've also designed and built a Super Simple 6 Point Suspension System ( try saying that quickly ) for the mirror. Very low profile and quite rigid using rubber (hi temp neoprene) wheels for both the mirror collimation 'springs' and as pivots on the three arms beneath the mirror. I'll post up some pix and details for comment later.