Anyone can learn the Kajukenbo techniques. They are not hard to learn. The difficulty lies in learning and applying the training methods that make them work.
Kajukenbo is not the ability to get beaten up without complaining, it is the ability to withstand a possible initial assault (psychologically as well as physically) and to respond effectively.
Firstly, Kajukenbo generally believes in contact. I don't believe it is really Kajukenbo if you can do it without contact, Training this method requires a degree of qualified supervision. This correct application of contact is the same as the tempering that transforms "just a piece of steel" into an effective blade that can withstand the demands of the battlefield and that can hold an edge under duress. Too much heat during tempering will cause the blade to be brittle and break, too little will not cause the organic changes necessary for the process to work.
Second are the drills that lead up to sparring.The Rotation lines, Monkey lines, Multiman attacks (Bullring?),etc, plus all the individual additions made over the years by different schools and teachers that caused the individual expressions to come out (Ch'uan Fa. WHKD, Tum Pai).
If you would like to start a group, you should contact a teacher you could respect (I am reluctant to use the word "legitimate" as it has been misused lately) and see if there is anyone from that group close to you. I know that Kajukenbo has appeared in England before. You could also get a hold of someone on the continent (GM Garcia is active as far north as Paris, WHKD is big in Germany, I have heard of practitioners in Italy as well) and either bring them to you or go to them.
There are no short cuts
Good luck.
PG