Andres,
Not sure if you're still considering the car, but here's what I noted looking at your tag picture and the ebay pics
Painted relays on a "fully restored World Class 250 SL"? What looks as unchanged front shocks, both front fenders seems to have been replaced, wrong colored sun visors matching the old interior(unless they're brown/beige from stains), rough trunk floor, US headlights on a Euro ca, late style 280 taillights, black wiper blades(I hate that), probably old repainted fueltank, missing rubber strips for hood, color change etc.
I have great respect for Brian at MI, and I've personally seen several of the 100k range cars at his shop, but it seems he had his reasons for why this car would not be in a higher price range with or without the color change.
Still a terrific looking car though.