I’ll just offer my opinion.
None of the portable stands look really good in the home.
I would get one of the wood bases.
It appears to me that you could easily assemble and disassemble multiple times.https://www.kawai-global.com/data/manuals/HML-1_EGFSI_R101.pdf
Perhaps Kawai James or some else can comment on that.
And honestly the only thing unique about the “purpose built” stands might be the mounting method and sticker. With a little bit of ingenuity I bet you could use those Korg stands.
I don’t really see that the K&m table with square tubing is any different than the Korg table with round tubing,
I’ll admit there is a bit of modern industrial vibe to the K&m but beauty is in the eye of the beholder.
One thing that would be nice is if there could at least be some standard in foot placement and or screw attachment points.
One thing I did recently is make some feet adapters and perhaps that is something kawai could do in partnership with another company and along with a sticker that would be a “custom” stand.
Anyway I have my keyboard on a K&m omega stand and it is pretty functional piece of stuff and the looks sort of grow on you,Custom feet