Focusers -
I bought (or more accurately, Jenny bought for me) two Bintel 10:1 Low Profile Newtonian focusers for the project. They have 37mm travel so should be nice. They're a tiny but heavy but are good value.
I've reversed one of the focuser shaft assemblies so that the slow focusing knobs are symmetrically presented for the user. The great thing is that as you turn both the same way, the tubes rack in and out in the same direction on either side

Nice!
If you want to see how good Bintel have priced these focusers for us Aussies - check out this site:
http://www.telescope-service.com/ATM....html#TSFOCNCs We get them for $149, they are selling them from this German site for 219EUR, or AU$350!!!!