If you're looking for a really nice match level peep sight fitting the sight will depend on the way the shape and how the bolt handle fits and moves.
Some time back I found an Anchutz rear peep at a gun swap show. I then went looking for a rifle to mount it onto. There were a couple of big buck options but for the most part the sight being mounted on the dovetails caused the bolt handle to be blocked by the sight being in place. I finally found a CIL/Anchutz model 125 which readily accepted the dovetail mounted peep sight.
Williams makes a somewhat similar dovetail fitted sight. But it's hard to say if you would run into bolt handle issues or not. A safer option would be the Williams target sight which fits onto a side bar that needs to be drilled and tapped to the side of the receiver and which also requires some trimming of a little bit of wood.
You can see examples of these sights in their catalog which is at;
http://www.williamsgunsight.com/gunsights/pdf/2014_Williamsweba.pdf
Look at the options found on page 15. As well look over the other options starting from around page 12.
Lyman has a few options as well.
The sad thing is that you're likely going to also have to replace the front sight with something taller. But the good news is that if you replace the front with a Lyman or similar tube style with the inserts that you'll get a further increase in accuracy potential.
Here's a picture of the CIL/Anchutz 125 that I upgraded. It went from a typical "V" notch rear and bead style front to what you see in these two pictures. With this setup and a bit of testing it was easy to produce roughly 6 inch groups on a gong at 200 yards when shot rested from a bench. A buddy and I took turns spotting on the fresh paint and planting hit after hit. It was an overcast and calm day when we did this. And I'd say that roughly 2/3's of the shots were within a 4 inch group.
Pictures!
