Thank you all very much! This gives me some options to try. The barrel clamp is still there, I'll try it without it. I like the sights, that sounds like a good option as well.
Who would be some good people for truing the barrel? I'm not sure about sending the gun to Remington, to get the correct parts to replace the bolt release button that fell off the first time I took the range I had to call them 3 times before they finally sent the correct parts.