I see you live in River City, AKA Sacto. Once a month, there is a silhouette match @ the Folsom Shooting Facility-Sloughhouse. Contact Arnold Moose 209-366-0715 for dates & times. I believe there also is a LR (800, 900, 1000 yds) there 2-3X a year.
Id drive on over & look @ the rifles & the sights. You can easily spend $4-500 plus on good sights: meaning repeatable settings & able to hold its settings. Good sights are worth their weight in gold & if you sell the rifle, you can keep the sights.
Ive seen Shooters skimp on sights only to become dissatisfied, as they were not worth the initial investment. When they finally bought a good set of sights, they had a difficult time selling the old sights or they sold them @ a great loss. Such a loss only makes the purchase of quality sights more expensive.
Under some circumstances, a wind adjustable front sight is desirable. If there is too much wind, you can roughly dial in the wind on the front, & save the wind adjustment on your rear sight for fine-tuning.
I would not be w/o a front sight that does not have a bubble level. It is very easy to develop a cant, which will throw your shots off & you can run out wind adjustment on your rear sight w/ a cant. I once saw a shooter run out wind @ 300 yds because he failed to center the bubble. Once he did, we had to start over from scratch.
As for a rear sight, definitely get a long-range (LR) sight. W/ a LR sight, you can shoot mid- range, but you cant shoot LR w/ a mid-range sight. I would hate to see you run out of staff when you really need it
A vernier is the only way to go as it offers precise adjustment. Also a Hadley style eyecup w/ has different sized aperture holes for varying light conditions is a worthwhile investment.