A BYC member here got her original Icelandic as part of an assortment from Sandhill last fall. She didn't know what it was until she posted on BYC and someone said it looked like an Icelandic. Perhaps call Sandhill and ask where they got their stock what kind of facilities they have to ensure purity if you're thinking about getting some.
Like I've told some who have asked....if you don't have a way to keep them absolutely pure, that's the way it is.....but do not refer to them as Icelandics if they are some kind of cross, because they are not. What makes them an Icelandic is not the way they look, it's their genetic makeup that hasn't been "monkied with", that's what makes them Icelandic. If you cross them, they can never be Icelandic again. It's not like crossing a chocolate orp into ameraucanas and then "breeding back to the proper shape/egg color/comb.........you can not "get back to" the genetic uniqueness that makes an Icelandic what it is.
OK.....off the soap box now......