Fix a broken floor pump, replace pump head
Slica makes a very nice presta pump head (below), the cost in the US is around $35. For that it ought to work well – and it does. The connection is a Schrader (car tire) thread and it is a pain to find a hose barb with that thread. What I did was to cut off the end of the hose and then use the threads on the pump head as a hose barb. I put a hose clamp on it and it holds just fine.