My daughter is too short to get a full stroke with the 36" handle. new on is ~$75.00 from simple pumps. I do not want to cut my ~$100.00
36" handle if I do not have to.
Just thinking out loud, for an inexpensive solution:
The long handle may still make the pump easier to operate for your daughter.
Can you just put a bunjy on it, hooked to a ground stake, to keep the pump handle from raising too high for her to reach? You wouldn't get the full stroke, but perhaps enough to do the job.