I looked at the Swissonic router too - but as DaytonaRik says, it's ruddy expensive!
I have ended up taping an old Netgear router to the bottom of the rack case, which seems to work fine. Not pretty though! If I had the time/money/inclination and I was doing it over again, I think I'd probably get a 1U sliding rack draw and mount the router to that so it can slide out when in use. However, that would compromise siting it on stage - at the moment, because it's all contained within the rack footprint you can put it wherever - I did a gig where someone else had a similar setup and he chucked his under the raised stage at the side, and lying on its side!