I assume you want to stock it to use the peep sights.........
I have had a few big Czech actioned rifles, they can be a fine choice with some attention.

My 602 375 didn't the peep and was always used scoped so the rather large "Bavarian" stock was fine.
A 458-3" with peep (rechambered 602 .458win) that was stocked in SA with a very trim stock, its barrel had been shortened as well as was a very unruly brute.
A 458Lott with peep (another rechambered .458win) was stocked with Mcmillans "express" pattern stock. I had the LOP a bit too long and it would hang up sometimes, but that was my fault not the stock design.
A 458Lott in a CZ550, was the factory "American" stock, thou thoroughly bedded and shortened a touch. Served very well.