It's also getting hard to find a lot of stock choices for the old staggered feed actions,but since you have a long action,you can buy just about any center feed 110 stock and use it. You will just need to open up the front portion of the stocks mag well for the staggered feed magazine to fit into the stock.

Here are some pics of a modified Boyd's LH Thumbhole stock that I did on my 6.5-06 build years ago. I just used some wood chisels and smoothed it out with a Drimel tool.