No time now to reply in detail, but your water loks fine. A little treatment should do you.
Your pH is slightly low, your harness and tds are minimal, your iron and manganese are high, but nothing that is not easily treatable.
A Home Depot softener... no.
The proper method would be redundancy for the coliform, so a chlorine system and a post UV, but is it necessary?
Raise the pH, calcite system, this will also raise the hardness, will it be necessary to remove the harness? Personal prefence at the low levels you will have. iron removal, chlorine, contact tank, and a simple GAC filter would be the simple way to take care of two problems at once. Chlorine pellet system or a simple pump, personal preference, we sell an almost equal amount of both.
What kind of a budget do you have? This will determine the treatment level and methods. What water quality do you want to finish with? What State are you in?