I feel bad for celebrating my new ZR-1 when you're having to sell yours, Jay.

However, I said it in the emails we exchanged and I'll say it again in agreement with the others: it's good that your dad is buying it from you. You can keep it in the family, you can possibly buy it back later, and you'll still be able to see it whenever you see him. It's almost like he's just holding it for you until you're ready to have it back. I hope that day will come soon-- sure seemed like a nice car from the pics and your description.
Take it easy,
Fred