My experience I bought a 18" f4.2 Zambuto Plettstone off Astromart for $6900 with Servocat and ArgoNavis. With freight and GST it landed here in WA a shade under $10000. An Equatorial mount for dobs is available (see faintfuzzies website) around $1000 although I've never used one. Just an idea for you to consider.
