I think the OP is thinking about this type of tire hammer: https://www.anvilfire.com/power/nc-jyh_index.htm
Yeah, there in lies the problem! Travel, transport, lodging etc...There is a group that has building classes where you pay like $2750 and participate in the build in whatever manner you can apparently and you walk away with a new hammer. Bad news is that it is in Louisiana, you have to go there for 3 days and you have to get your hammer back home.
Yeah that is true they are a PITA!! I brought it to a Tire guy which was still a PITA HEAVY To move an load into truck!Learn't something new. Hadn't heard of a tire hammer in that context before now! Cool stuff! Thought you had a stuck bead on a tractor tire or something... Felt sorta bad for you needing to change it. They can be a PAIN to get off. Had times where it took 4 people to break the bead on one wheel.