I looked at my records and see that the most that I ever paid for a pre-1898 military Mauser to rework was $230, so I'd be hard pressed to justify paying $405 for an Ed LaPour 3-position safety bolt shroud for one of them. That said, I have a mill, a lathe, some trial and error skill, and plenty of time to do the metal work, so installing a D-T COO kit is just something to do when I'm not doing something else.
If you like COC, leave your rifle as it is. If you don't, the D-T COO kit isn't very expensive to buy, but if you have to pay someone to install it, it might not be worth the cost.
I don't like COC and the guy who I have reworked most of those pre-1898 military Mausers for doesn't like COC either, so when I rework those rifles for him and for myself, I always install a D-T COO kit.
