By golly! Looks like a scope to me!
If you are still to make your focuser, have a look at this helical focuser:
http://www.1800destiny.com/Merchant2...duct_Code=FOCH
I replaced the 1.25" helical focuser on my 10" for this one. This new unit is smoother in action, and with a greater range of travel too. Might be an idea to visit if you have the gear to machine with.