Ubunto 16.04 LTS - setup WiFi AP with ac, n and g bands and bridge with ethernet port

[johngs]

How to setup 16.0.4 install as WiFi AP with ac, n and g bands with latest cards in the market today. Also bridge it to my Ethernet port which has internet connection?

I have seen few examples of g band setup and they do work till you setup AP but nothing beyond that....

Thanks for looking into it.