I actually own 3(!) Icons Alien Attackers, one that has been displayed at the office at Icons (with a promo mark underneath), another one with and one without displaycase, 2 of them needs a bit of restauration. All 3 has a slightly different paintjob. I am quite happy with the grayish paint job which to me is the best color for this huge thing.
It was advertised as being a direct copy taken from the original mal that was also used to fabricate those ships for the movie, to be honest these models are extremely detailed in every way. As they advertised it having a clear look inside the cockpit, this has never been produced this way.
I also have an ID4 Making of book, there is a picture inside of a guy holding an original model in his hand and i can tell you that this Icons models are exactly the same as the ones pictured in the book. By dimension and paintjob.
I am interested in selling one for an acceptable offer
