I was able to find the cage on ebay. Maybe this link will work better for everyone:
http://www.ebay.com/itm/281240602622The ebay listing says it's 30x18x55. The Prevue Hendryx cage is 31x20.5x53 inches. So they have about the same amount of interior space. Personally I would prefer the Prevue Hendryx cage, I know it's decent quality. The Ebay cage looks flimsy, similar to one of my spare cages that couldn't even be put together properly and I ended up securing some of the corners with clips and wire. Plus I like the dimensions of the Prevue cage better, there's a little more width and depth which is more important than the height.
The Prevue cage is a little more expensive but it's worth it IMO. Any large cage is a pain to assemble but I think the Prevue cage will be easier to put together. It has more panels that are smaller in size and fit together well. The ebay cage looks like each side is one big piece, like my flimsy cage but even bigger (and therefore more awkward to work with). That cage was an awful struggle to put together.