Ok, the reverb out jack on Crate V18 is ****ing killing me. It buzzes at random times.

I have a digitech digiverb, so i don't even use the reverb on the amp.

My question is, will everything on the amp be ok if i just unplug the reverb out cable until i get it fixed??
Should be completely fine i should think.
Guitar: Ibanez Rg 2ex2/ with Dizmarzio Super Distortion
Amp: Peavey Valveking 212 (replacing soon)
Pedals: Planet Waves Tuner, Boss DS-1, Digitech DF-7, MXR-108 EQ
Everything should be fine, you just wont have any built in reverb... which you've already stated won't be a problem for you!
are you sure it's the reverb tank. power tubes going bad will also buzz.