PM me for specifics.

It depends on whether or not you are LE and your department policies.
If not, it can get you into legal trouble with the same, if you are unfortunate enough to need to use it.

There's options. I'm not a lawyer, nor do I give legal advice. Perhaps we can come up with options. No way to do so with a forum over 50 states and countries.

Whatever you get, the training is far more practical than the weapon IF it's practical and IF its quality. That is extremely rare though.