I broke a spark plug off and then are put rusted and, my dad said we should replace them but they're really hard to find. my dad was wondering if you could just use normal sparkplug and wire but keep the same Distributor. I want to keep it all original is their place I can buy the waterproof spark plugs.

Ps Im the highschool student who is working on a 1968 jeep 1- 1/4 ton M-715 truck.