Keelbuster if he's around could probably answer this one.
Im quite sure that a type7 can go all the way to the east coast and carribean. Only problem is, it wont have enough fuel to get back
You could always try and find out yourself, but its gonna be a long and boring trip. To get the most range, you'll want to use your diesals as little as possible, and run them only long enough to charge your batts.