After a bad experience with the last versions of the Walker I would not adjust it myself. I would either send it to someone like Neil Jones or just buy a Trigger Tech. I also like a side mounted bolt stop and a MauserWinchester swing style shroud safety would be nice, but with all this you are close to the cost of a custom action.

"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli