Hey Brad, I did the trip to Panama from Canada last year and am living in Panama at the moment. Enjoying your RR.
Be sure to ride to Volcan Arenal when you're in C.R. Some great twistys and views. I also like the Peninsula De Osa in the South. Check out Golfito and Playa Zancudo if you've got time.
Let's meet when you get to Panama if you like. Maybe we can do some local rides.