http://www.spartanspecialforces.com.au/
Step one: Give my mate James a call. His brother and he are the the only bite dog trainers in WA (as far as i am aware of). They supply dogs to the police force, security guards etc.
Step 2: Buy said dog (refer above link for a bit of a teaser video)
Step 3: Sit back and relax... preferably with a camera and then post up the vids!
No seriously give James a call and I am sure he will be more than happy to have a chat to you about what you can do dog wise. Tell him Sam said to call!