Update: The trip has been postponed for now unfortunately. I had knee surgery (meniscus and cartilage repair) in Oct-2016 and I'm still not at 100%. I'm planning to do RAGBRAI again this year so hopefully I'll be ready to roll by then.
Honestly my recovery has been a lot slower than I was expecting and slower than what my doc indicated. I've made some very big improvements over the last month or so but I still have a ways to go.