That hitch and a few other good designs are no longer made, unless you want to get one custom built. And you cannot mount a bike rack to them anyway, because it is not a hitch, it's just the tow ball.
The easiest solution would a Willwood hitch (I have spoken with Will, and while I don't have one of his racks, I would not hesitate to do business with him), Bird rack, or a Porsche Roof Transport system if you can find one. The last one I saw went for about $400 on eBay a few months ago, I paid $300 a few years ago.
Unfortunately, there aren't many options out there. I would personally search for a RTS, which is what I have because you can use it for other things as well.
