How do they get along in the 75? Could they be kept in a 30 gallon holding tank for 2-4 weeks? If they will be ok I might pick them up from you - I live 2.5 hours away.
Yeah I know that isn't a real smart idea. Its real hard to sell Piranhas in Western Pa for some reason. It took me about 2 months to sell my Black Diamond Rhom and Sanchezi on PFury.