Jerry,
What you describe is pretty discouraging to a Springfield collector. The value of the NM action pretty well bottomed out with the addition of the three tapped holes for a Redfield base. Similarly, the lack of proper markings on the barrel (except for the Star Gauge mark) pretty much relegate it to the value of a well made used modern barrel.
I have sitting in my gun rack a Springfield sporter which has had the stock "checkered", the receiver crudely drilled and tapped for a side mount, the barrel shortened and the bolt handle altered. The overall effect is like a train wreck. Good luck on finding a buyer!
Bill