Oh, excellent. Another obsession I really did not need
I managed to source a couple of CDs more or less locally, more are on their way from Japan. This is going to be a long and expensive journey...
On a related note I would like to recommend the excellent Tokyo Jazz Joints site (https://www.tokyojazzjoints.com/).
They contributed the photos on the BBE J-Jazz compilations and do some ace podcasts as well.