I have a bunch of Acrolink and Esoteric power cables. I'm not sure how easy they'd be to change due to glue/sealant I saw when I unscrewed the barrel to see if I could view the construction. I also don't recall seeing the connectors on the Oyaide website. I was thinking of making a diy cable and I think the connectors are very high quality, if not the best I've ever seen.
I'm getting ready to sell 2 9700s with US connectors that I bought from a dealer in Japan if you have any interest.