If you don't want to pay big bucks for that big Scope. this is a
pier mounted; Russian equatorial mount with a single drive.
I never used this mount as I ran out of money before I bought the big scope. (I wanted a 10" F6)...I can sell this brand New mount for $275, plus shipping in CONUS (this is a beefy mount)
Pictures can be seen at the TALscopes web site with a smaller Newt attached (this is a new mount in wooden box). Would handle scopes that require a GM11 type of mount, such as a large Mac, Mac Newt, Newt, or Schmitt.