International marathons?

Despite a bout of illness and a lack of any formal training plan, I think that I am grooving along pretty well and have a solid base.  With the exception of sick week, I'm averaging 30-35 miles per week with a few 15 mile long runs.  I'm hoping to get a 20 mile run in soon, perhaps tomorrow.  I'm intrigued by the "No Wimps" challenge that is part of the Trail Marathon at the end of April.  Basically, this just involves a half marathon on Saturday followed by a 50k on Sunday.  Sounds like fun so that is my short term goal with the Hallucination officially in my sights for the fall.  Besides, who doesn't want a "No Wimps" t-shirt?  In May I will be traveling to China, Taiwan, and Japan so I have kicked around the idea of running 3 marathons in 3 countries in 3 weeks.  That might be a bit much given our travel itinerary, but it is fun to dream.  Perhaps I can get one marathon in there.  It's been nice to be back in the groove and have some goals in sight.  We'll see about the international stuff, but I think I can definitely be ready for the "No Wimps" challenge, which is notably on the same trail as the Hallucination 100.