The Cabelas Denali is close the Island Pro, but not built to the same level IMO. I had a pair of Kenetreks, and while tough and held up, they did not fit me nearly as well as the Island Pros. I really wish there was a place in the US to get real Meindl's and not the Cabelas branded ones. The Island Pros are the best boots I've ever had. Hoffman Boots is the only place I know of in the US to get Meindls, but they don't carry the Island Pros.

http://www.hoffmanboots.com/category.aspx?categoryID=67

AJ Brooks carries Meindls and the Island Pros, but I've not checked to see if they will ship to the US.
http://www.ajbrooks.com/Meindl-MFS-Memory-Foam-System-Boots

My next boots will probably be from Lathrop and Sons, which is where I got my Island Pros back when they carried Meindl. Their footbeds/insoles are the best I've ever tried and I like the looks of their line of boots.