Quite a few GL take-offs out there. (Silver) I picked up a GL rim / tire, s-arm, final, rotor, pads, caliper when I got the bike.

Black is a bit harder to find, but they come around.

Fronts are tough to come by short of 'new in box'... I wouldn't mind picking up a GL front so I'd have both a GL set and F6B set,,,