Today at Goodings, a "cabernet" 280SL was reported sold for 135K. They don't let you into the "sold" area, so I couldn't inspect it, but it was very impressive from 30 feet away.
Also at Goodings, there was a dark green/bamboo 280SL, restored by Tony LaBella, that was about as good as it gets. Wasn't allowed to open the hood, but looking underneath, you could see restored horns, and replated fittings on the cable holders on the oil pan, all suspension fittings replaced or replated, and even the fittings on the original trans cooler hoses were replated. In the back, an immaculate rear end, new gas tank, and new MB exhaust. I could not find fault with the paint, panel fit, chrome or interior. New and perfect-fitting soft top. Wheel wells painted body color. The only issue I could find was the old yellow windshield washer hose, visible through the cowl grille. Pre-auction estimate was 175-225K.
RM had a 280SL, also dark green, but with a tan interior. Sorry, no picture. It had a variety of issues. Black engine compartment, hoses and clamps were a mess, a lot of engine parts spray-painted silver, shock washers upside down. Incorrect color horn pad, wood shifter knob (automatic). Chrome and gaps OK with minor issues, like no cup washers under the grille screws. It had a lever under the dash that said "Overdrive." Hmm. Estimate was 100-125K.