Morning Dan,
I've been a stick wielder since 1982. Carry a pair on the floor of the car made out of of two dowels 26" long.
Have a nice pair of polycarbonate police sticks 1" in diameter which, due to the weight, really works the forearms and wrists.
I would suggest as well you find a Kali/Escrima instructor at one of the local dojo's in your area. I just ramped another student up on the stick in the last 10 months.
Just the basics in strikes, blocks and double stick drills. Double stick is the fastest way I know to make someone ambidextrous.
They don't even know thats what is happening during their training.
Once they are up to speed [sorta speak] I have them use one stick with the "off" hand and they see right away what has happened.
I think having some double or single stick background will also make it easier to learn knife drills. I learned the stick years before the knives and when it came to knife training found it very easy in the 12 count striking drills which were muscle memory from the stick training/practice over the years.
Easy to transition from one to the other but I like the stick first, the knife drills came easier for me with that background.
Others mileage may vary.
It is an admirable goal, and when you have ramped up on the sticks you have something that can never be taklen away from you.
Good luck in your quest and please keep us informed of your progress.
Brownie