Not hard to make one yourself Erik. Use a decapping/expander rod from any sizer die, or a small nail set in a 1/4" brass rod. Blunt the nail point and tap the primer out with a hammer, case sitting atop a 3/4" hex nut. To replace the primer you might try using a vice/wood block and a wood dowel inside the case. Wear glasses, proceed slowly. OR, if you don't have glasses by a MEC press...600 IIRC.
You might figure out some other ways less hazardous...it ain't high tech.