The BFG AT KO2's will be fine and do what you want. Not the cheapest tyre mind, so have a look about if you want to spend less. Plenty of other good tyres.
Personally I prefer a true 7.50 x 16 on a Series or something narrow, but tread choice is a bit limited. I know BFG offer their MT's in 7.50's though, so maybe they do with their AT's too.
Running winter tyres all year round is fine, although they can get easily torn up on a dry hot road and wear quicker than normal. This can also impact handling and braking to a certain extent.