Occassionally there are listings for a fellow that sells the leather packing for Model T era hand tire pumps and I assume these could also be cobbled up at home, but how do you rerpair a cracked or broken rubber hose on one of these units to make it operational? Does anyone sell an "era" looking substitute hose and can the friction fit connectors at each end of the hose be used over? Are there replacements available? Thanks...Michael