I thought most engineers don't really want to see the car until it's ready. Arrange a meeting with them, take a heap of photo's of what you've changed and any areas you wish to question, whack 'em on a USB and their you go. The engineer should be able to tell you everything you wanna know just from this.

Can you get a special permit to drive it there? In NSW you can drive an unregistered car to a licensed mechanical repairer for the purpose of getting the car fit for rego. I'm sure an engineer counts in this regard.

I think originally everyone was confused with what you were after. Instead of being hostile let everyone say what they want, weed out the stuff you don't agree with, and take stock of the advice that will help you achieve what you want in the cheapest and safest manner.