Air Pump for Willys MB

[Flying10uk]

That's very helpful. I have old hose clips like that in my toolbox; for fuel lines.
I think the valve connector is similar to the old foot pump type. So should be easy to find something close to original.

Many years ago an old boy who had spent his whole working life working in the motor trade, after spending WW2 working in a factory, once said that the secret to finding/sourcing parts for old vehicles can often be how one describes the part in question that is required. This was said because someone was trying to source a "core plug" for a specific vehicle rather than asking for a "core plug" of a specific size.