Many people here (myself included) are reticent to help with stun gun projects. Any project intended to shock humans like this is potentially quite dangerous. Amateurs (and hack plans like this) are not only quite ill-informed as to what it would take to shock with minimal possibility of injury, but there is frequently an irrational drive to make an even "bigger, more powerful" one which can be far more dangerous.
Additionally, even well designed hand-applied stun guns are nearly useless self defense devices. Such dangers are difficult to justify when the device has no benefits to begin with.
Just what is the purpose of your project?