Ive only seen and fingered the okipa 2,it looks fairly well made,it got smooth plastic exterior and is a bit smaller than the dive hunter,wich migth be both a goood and a bad thing,I dont think you can sit on it to rest,but it might be more managable in wind/current. I think omer makes a copy of the divehunter, its in their 2013 catalogue.
I wrote up a review to the Okipa 2, if anyone is interested, it is on my blog, here is a direct link.