Replacing NS-M5 with PowerBeam M5

I am the "source" node for our five node Mesh in Lake Havasu City, AZ, via Internet Tunnel (tnx, AI6BX). I am RF connected to a Rocket M5 w/ 120° Sector on a high point. Several other nodes connect to it. My NS-M5 has main and secondary port. One goes to my home network for the tunnel. The other supplies IP to computers, RasPBX, Pi, WiFi.  In order to provide better signal I am replacing it with a PowerBeam 5GHz, which has only one port.  I'm looking for options.

I can get a Managed Switch - Netgear, ToughSwitch etc,  learn about VLANs and somehow get the Tunnel to the Mesh. Which Managed Switch do you suggest at this time? I usually buy Amazon Prime - another source suggested?

I have an AirGateway (with antenna). I may use that for WiFi around the QTH.

I got some idea from this post: http://www.aredn.org/content/newbie-alert#comment-2336