Patagonian Cavy Pair

I have a 3-4 year old 1.1 pair of patagonian cavies Dolichotis Patagonum. I wold prefer not to ship these but I will consider it. I am asking $850 or best offer for the pair, these guys are my very best. They amlost always produce 3 babies per litter and I have no problem selling the babies at $475 ea. These would be a great investmant. I am only selling because I am getting otni other species. Trades for softbills, parrots, other exotic birds, and exotic animals will be considered.