I have done over a dozen builds on Mauser receivers. Mostly large ring actions but did two small ring at least. I have never heated and forged a bolt handle or had any done. I replaced all of mine. I cut the straight or curved mauser bolt handles off with a Dremel tool and cutting wheels. I welded new bolts on myself. I still have a few Remington 700 bolts that are new and a few other styles. You can buy these fairly cheap from Midway USA, Gun Parts Corp. or Brownell's. Also if you don't install iron sights and choose to drill and put bases for a scope then you need the low scope safeties. They sell them also. I used to use only Buehler or similar brands.Back many years ago I enjoyed having rifles built up on Mauser actions. We had two guys in town that did excellent work converting actions and installing barrels. I'm working up loads for the last one of these rifles currently. No joke, that rifle has been in the works forty years. My suggestion is to do some figuring on cost of converting. The last bolt handle I had welded own ran $100.00. On the flip side, I have sticker shock on the modern world.