Yeah I've never seen racks exactly like in the NA room for sale. A breeder friend of mine made racks that are very similar though (where the bins sit on rails on either side rather than sliding across the bottom, if you follow me). Personally, I think the NA racks would be great for rodents but less great for snakes, because making a hotspot would be more difficult. Maybe I'm overestimating the gap underneath the bins though, I work in product so I'm not back there much.

I guess the real question is, why are you so set on that style of rack when there are so many great racks that are slightly different?