I should be able to, but just felt that maybe I could recoup my money and punt it on. I keep changing my mind on what to do with it.
One of the LAN ports can be converted to a WAN port, but if you need all 4 LAN ports it is not as useful and you then have to buy a Switch, but Gigabit switches are cheap enough these days, but you stated you need things to be small and less obtrusive.
Best routers out at the moment in terms of the best wireless are the ASUS RT-AC3200, NETGEAR R8000 Nighthawk X6 AC3200 and D-Link DIR-890L AC3200, have a look at them first.