go to a machine shop, maybe they can make some parts to adapt the mount with some special made parts.

Or take the stand and the bike to a framebuilder and have the frame modified to take your loop stand.

[NB, Flash didn't work, that picture is against too dark a background to be seen]

have you considered a central mounted Swiss made Esge 2 legged Kickstand ?

I had a more substantial rear wheel prop stand built as a part
of my loaded touring bike

It was built integrated, as a part of the original frame build.