I have two photos that partially show an untouched Model H handle. Let me know if they would help and I will post them.
Ron Scobie told me several months ago that he sold his last repro H handle and did not have any to use as a template to cast more. There is a current repro for another type of pump that is about 26" from top to bottom and it fits and the locking piece on the pump base fits into the slot on the repro handle. That is what I used on my Model J. I don't think there is another option at this point; unless you find