Weekdays were spent vacationing, touring ancient sites with my family. Even with the added expense of a family traveling together, I always came home with a comfortable profit. First, you must want to travel and to teach. If you don't enjoy traveling, this plan will not work for you. Second, you will need a passport.
Passports cost only about a penny per day to maintain.
I am working on my sixth, so you can see that I truly practice what I preach. Third, and perhaps the most crucial consideration of all, is the obvious need to secure bookings for overseas workshops. If those friends cannot sponsor you, perhaps they know people who might be willing to accept that role. Contact those people suggested to you. The secret to breaking through internationally is in the percentages.