UniStar Light Deluxe mount as shown. This fine alt-az mount is rated to 10 lbs. and, thanks to its large teflon bearing pads, has a smooth motion. Mount includes dovetail and adapter plate for a 3/8x16 tripod. Tripod shown is NOT part of the package, but is available if you're interested.
New is $280 plus shipping. I'll sell for $225 shipped Priority Mail in CONUS.