This isn't an admin question, but deals with potentialy pro level gear that sys admins would encounter in advanced network setups with building wireless bridges. Would this be good to ask at SF instead or should I keep it on SU? SF might have some more knowlegdable people in this area as this request moves out of most home consumer wireless gear.
I don't necessarily see a problem with it being on either site. I think you may have a potentially greater audience of users who know what the heck they are talking about on ServerFault, however.
I should also note that our office recently did something very similar for a client of ours (connecting a detached portion of their machine shop to their main building) wirelessly, so it could certainly fall under ServerFault's mission statement as well as just a high end consumer job.
If this is for home use and you're looking to use low-end consumer gear to get the job done, that's more SU. If it's for business, and you're looking for a commercial-grade solution, that's SF.
It looks like SU material to me. While it could conceivably be of interest to some systems/network admin somewhere, that's hypothetical. On the other hand, it is definitely computer-related. The "prosumer" reference seems to map well to the core concept of SuperUser knowledge.