I have no problem with using a stock gun. Might add to the challange quite frankly.
I have no probs travelling to the US. I have my passport in order and travel there on business. In fact, Ohio state honours my Utah state concealed carry, so I could bring down my real steel and do some shooting down there as well.
Sounds like a blast. I would be in and willing to take a couple of weeks vacation and make a real trip out of it.