Well water question

[jk-riley]

I live in southern PA with a 2.5 bath house on well water. I just went though the house replacing all the brass connectors that was connected to PEX tubing because they were leaking.
The well is only about 40 feet dep with a jet pump. We had the water tested and the ph level is 6.1 with a hardness of 10.
According to the local plumbing supply company they recommend that I get a filter system, followed by an upflow ph neutralizer then a water softner.
My questions are:
1) If the well was dug deeper with a submusable pump would that change the ph and hardness levels?
2) Any suggestions for a filter system, ph neutralizer and softer (is salt or non-salt better)?
3) To save space in the basement I was thinking of putting the filter system, ph neutralizer and softer in the well pit with the tank. Any comments?

Thanks