He's done at least one for the Hyper 7 - though it's a very different moount that require replacing the two diff standoff/mounts with totally custom machines pieces. The only problem with that is that it's expensive:
That's brian's I believe. I made my own mount and it works great, but if that mount was made available, I'd get it just because it really simplifies the battery placement. I heard that he was going to refine the design further and the price should come down. Haven't heard anything yet, but maybe we will here something here! :)