1. When I looked into this in 2008, there was a substantial discount off MSRP (dare i say 8-10%???)
2. Not sure what you mean, but you have full warranty while in Europe. They give you European car insurance for a certain time period (again, is it 2 weeks?)
3. It would take 4-6 weeks for sure, it has to be boated back to Canada then railed to dealer.
4. I am sure that you need to have all financing (payment) complete prior to picking it up, so yes, you would be making payments while she's on the boat.
Good luck, I am sure you'd enjoy it tremendously!!