Upgrading to Wireless-AC

[devbox]

Hi guys I am in need of an upgrade on the home networking side of things.

 

I am currently running an Asus RT-N16 and I am getting a lot of interference issues on the 2.4ghz band. Also my range isn't that good, I get maybe 2-3 bars from where my computer is (upstairs), and I can't exactly move my router (living room). It has to stay at the far end of the house.

 

I am thinking of upgrading to Wireless-AC so I need some recommendations.

 

Requirements:

-between $100-$150 CAD

-Must have custom firmware available (DD-WRT or Tomato)

-Needs good range, (~15m, )

-Canadian vendor (ncix, cc, amazon, etc) (preferably amazon...free shipping )

-Ability to flash MEGA custom firmware version

-lots of RAM

 

I was looking at Asus RT-AC56U but I found from reviews that the performance and range isn't that good, so I might return it when it arrives so I don't get hit with a restocking fee.