One might assume that the question on the mind of someone facing a 3,300-mile, cross-country cycling trip would be “will my body hold up?” But for Jan Gierlach, the Lake Barrington teen set to begin his “Ride for 3 Reasons” next week, the question circling his brain most may be “where will I sleep?” Jan has spent a lot of time plotting his course from San Diego to St. Augustine, Florida, in great detail so he knows where all of the resources are along the way down to granular detail. “I’m compiling a spreadsheet right now — there’s this gas station, there’s this Motel 6, all these kind of places that I would need,” Jan said.