Sandy, I have a couple of the older "totes" that have what I think is the odd valve you are dealing with,,,,what I did for those was clamp a short rubber hose adapter over that valve, on the other end I clamped in a PVC fitting that went from that diameter 2" I think to a 3/4"M stub,,,then added a 34"MIP to 3/4"Hose fitting I'd go check but the totes are buried in the snow yet in the field
the newer food grade totes on plastic pallets usually have stand pipe thread ends that can be adapted down to your hose fitting easy peasy,,,,I find most of these fittings are Menards
you can also google "tank flanges for totes",,,maybe find what you need exactly,,,I also think that Fleet Farm has adapters for totes
good luck