I want to update that I am very close to successfully implementing the atomic swap protocol using chains that enable scripted spending conditions as it will allow me to easier reason about the implementation (this means I wont screw up as much when working on the grin version). The implementation above is semi incomplete, there are a couple of small (but significant) oversights that make it confusing upon first glance at how the operations in the swap are accomplished. I have implemented a python example that fills in the missing operations and will post it here upon polishing so that other people can see how the atomic swap operations play out step by step. 
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