Onisarashi-hen is two volumes not one. It also has a epilogue chapter floating around but I'm not sure where you would be able to find that.
Utsutsukowashi-hen was cancelled after three chapters so unless you're a collector I'm not sure it would be worth your time and money.
That said, I can't vouch for your breakdowns of Kai or Rei, and I've never even heard of Kokoroiyashi-hen or Gohanashi-hen, but the rest looks more or less correct.
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