2 weeks, 40 to 50 hours? That gives you the range to go just about anywhere in the mainland US/Canada and still get back again, especially with an IR! Beautiful as the SW is, I'd be tempted to plan a longer trip - to the east coast and back.
Sun n Fun is April 13 to 19 in Florida. Flying in Florida is OK, but flying TO florida from the west coast, with plenty stops on the way is a real adventure!