Peter Read of SDM is now making his version of an UC scope, so I would contact him and see first. His scopes are
beautifully crafted. Obsession is often a shorter wait though due to the fact that they keep optics in stock.
Truss tube scopes need to be 'tweaked' into collimation every time you set them up but it is really not a big deal when you have done it a few times (2 mins). At F4.2 you really need some good collimation tools (
http://www.iceinspace.com.au/index.p...63,390,0,0,1,0 ) and well-corrected eyepieces (Nagler and Pentax) due to the steep angle of the cone of light. The Parracorr will correct for coma only so cheap widefields are out.
Secondary dew heaters are necessary for open type scopes - I think the Obsession UC comes with one standard. I would definitely get the travel case as you would have to pay for crating anyway.
Sounds exciting!
