Given that this is probably an old GSO style dob it may have one or more of
- single speed focuser
- old style collimation bolts on primary
- old style alt mounting with springs
as against a new GSO that has
- Dual speed 10:1 Focuser
- Knurled collimation knobs on primary (these make a huge difference)
- adjustable tension and moveable alt axis
When you combine that with the mucking around to get an old mirror recoated, (plus what condition is the secondary in? and will it also need recoating?) and given that Bintel sell 10" mirrors to suit these anyway for $350 (see
http://www.bintel.com.au/Accessories...3/catmenu.aspx)
seems like a lot of fiddling around.
I would just buy a brand new one with free shipping from Andrews at $649. Get warranty, all latest improvements and no mucking about.
Unless money is really tight or you like a project!!
Malcolm