Can't really help with the bedding info but might be able to help with the peep sight.

First off, some of the 325's weren't D&T'd for a peep, does yours have the two holes on the left side of the receiver at the rear of the reciever?

If so you can probably find a Savage 175 peep sight at a fair price that will make a good fit. They were a delicate sight and broke often if you don't treat the gears gently so make sure you find one thats complete. I think the Lyman TS might have fit those as well.