Payment due: Two dreams.
We're not going to get this any faster. At least, not without something more crazy. I now feel this is optimal, at least by the methods I am using.
According to me, the Valley of Death fairies by this attempt reaches the last cave 287 frames faster than this movie produced by the Reflect Trek fairy manipulation. We just need Arc to copy in the last cave and Great Palace input and tweak things to fit with the RNG.