I am not sure fully if this is what you hope for, but on the latest version of OTHIRE we created an arena on Peora, using the RME map and the PVP tool; then modified rune scripts to make them uncountable in that area. The final result:
No skills, equipment, or levels are lost upon death and runes will become unlimited. However, rings, potions, arrows, and desintegrate runes will be used as normal.
When you die, you end up in your town's temple. You might also be able to adjust scripts to make rings/arrows/potions etc. not countable; pvp is not so popular on our server so we left it very basic.
I hope this is close to what you were looking for, good luck!