This is the same type scope favorable mentioned in Stephen Tonkin's book on amateur telescope making. It is made out of an aerial camera lense assembly with an internal adjustable iris that changes the focal length. The iris is narrower than the primary lense so the clear apertutre is really 3.15" or 80mm.
Stick your 2" diagonal and an eyepiece in the back and enjoy wide views of star fields(Pleades are beautiful!!!!)
Shimm the diagonal slightly for a tighter fit). You could install a very low profile focuser(helical?)instead of sliding diagonal in/out. Very simple and sturdy.
This is a low power scope; it has a mounting plate on the bottom for attachment to standard camera tripods.
$65 shipped CONUS; I accept PayPal, cashier checks, and POSTAL money orders(postal only!!!!!). Trade ideas accepted; whatcha got!!!!!!
Thanks for looking,