I'm not a big fan of the newer Williams peep sights, but they are windage adjustable and run about $120. For $50-$75 more I personally would look for an old Lyman 29 1/2, but it can take time to find that for that price.

“The Savage 99 Pocket Reference”.
All models and variations of 1895’s, 1899’s and 99’s covered.
Also dates, checkering, engraving.. Find at www.savagelevers.com