Putting up a 458 on a M98 is straight forward. Only caveat for the VZ 24 would be the magazine length...I believe it's about 3.2", which is short for a 458, but ok for a 25-06. The mag box is also too narrow for a belted mag to feed perfectly. If you could get a proper belted mag bottom metal, the action body could safely be altered to accomodate 458. Check with Numrich. It usually ends up cheaper to start with a commercial action made for the short mags, but you can certainly make up a fine rifle on the VZ 24.
Otto