Auto bolt release mod is easy. Go slow and test fit a little at a time. If you mess it up the rifle will still fire and you can buy a Volquartzen part to do what you want. Its a win win.
For a trigger job I highly recommend you just install a Volquartzen hammer. It usually drops the trigger pull down to 3.5-4 lbs.
Be prepared.......It is more than a motto it is a way of life.
JYD #41, "MesserHund"