I would personally go for caviar. As mentioned in numerous threads, lambskin scratches, stains, wears etc far too easily. It is true that it is really difficult to find a red m/l flap in the boutique at the moment. Your best bet would be ebay, bonanzle or consignment shops. They do pop up every now and again. If you are not too fussy with the shade of red it shouldn't be too difficult! Good Luck!