I don't know about the Rock Hard 4x4 swingout carrier, but those are usually looked down on around here because of a variety of problems that seemingly always occur with the mechanism. The go-to suggestion is the MoRyde tailgate carrier.
Several bumpers have a similar design to that one without the swingout carrier. I know my Warn Rock Crawler is pretty much identical with the tapered ends and a hitch receiver. At any rate, check out Fluxor's rear bumper offering. $2k is a lot of money for that Rock Hard 4x4. I imagine you can get everything you want for less than $1k if you go another direction.