These are available in various lengths and with various types of plug. I like the VMS system as it allows servos to be removed quickly in the field. The sockets are 7mm x 3mm, small enough to be pulled through the aileron cable channel in my Eliminator pylon racer. If this is unsuitable for you application, chop off the VMS connectors and solder up your own cable. Your mileage may vary.
Installation There are no mounting lugs.
The frame is then secured to two pieces of wood which are in turn glued into the wing. The frame needs to bend slightly to accomodate the snap lugs. If this is not possible, two of the snap lugs can be filed off the side of the servo and the servo secured to the frame using supplied 2mm grub screws. In response to demand Michael Volz is modifying the design of the frame and CNC wooden mounts will be available for easier installation. The servo is actually too slim to fix directly to in the top wing surface in the Ellipse I am building.