If you want a Mauser 98, you can buy a new CZ 550 rifle or just buy a CZ action for under $400 and get the latest metallurgy. Old military rifles and conversions are for collectors, not modern long range shooters. Buy new and pay less in the long haul and get a better rifle.
My CZ 550 is in 7x57mm, so it is as Mauser as you can get, and it will shoot just as accurately as many custom rifles
that cost much more, and I paid under $700 delivered, with CZ rings. Well within sub-MOA with Norma factory loads or handloads. With woodwork good enough that I have been asked "Is that a Sako?" by a Remington owner. No, just a typical CZ rifle that walks all over most similarly priced factory rifles, nothing special as far as being a CZ goes, just an average performer.....that shot as well with Norma factory loads as his Remington Model 700 Varmint shot with his handloads. I own four CZ rifles and am looking for more.
Russian special forces are now using CZ firearms (and I suppose they did for decades past), and CZ holds 50% of the new rifle market in Africa. Russian special forces do not buy into marketing hype and if CZ was in any way substandard they would not use them as they are not a Russian homegrown product.