After I became disabled, I started looking for some instruction in the defensive use of a staph (don't know how to really spell it, but use of a defensive stick). My legs are toast, and I have one, so running is not an option. I almost always carry my cane, so I figured that I should learn how to use it to my advantage.
None of the martial arts instructors I knew or worked with could point me to a reputable instructor. I have contacted a number of martial arts studios within about 25 miles, just getting the same response, "... sorry, we can't help you ..." Sadly, I have given up that quest. I don't know if the folks I approached didn't want to instruct someone that was disabled, didn't want to deal with someone that knew what they wanted, or what!
I wish the OP good luck in his quest!
Stick fighting is nigh universal. It is also nigh impossible to find instruction outside of a few metro areas.
There are some MA styles/systems that work with folks with limited mobility. There are some that teach weapon use: bo, jo, sai, chucks, tonfa. I once spent a couple years in a dojo that did both. PM me for more info.
If doing it on your own, there are a couple of systems/paradigms that might help:
Jo Stick
Single Stick
Pugil Stick / Bayonet & Rifle
I built up a nice cane from a hard wood stockman's cane that I have brought into non-permissive areas. When I practice with it, I use pugil stick / rifle & bayonet technique. The curved handle of hte cane serves as hte rifle butt. Used with vigor, you can lay a hurting on someone. A practice aid is one of those skinnier 6' tall heavy bags. Do your best to find a sparring partner and pad your canes or get some pugil sticks.