I think I have 3 of the 35750-333-013 type. Brand new, in bags I think, been a while since I saw them. I might even have 1 of the 023 type as well, not 100% sure, almost identical though IIRC. I'll check tomorrow if you're interested.
I bought them from Holland (not CMS) and the postage was horrendous so I'm afraid they ain't cheap. Around £35 each I'm afraid. Including P&P though.
That link to fourbits doesn't work for me, says it's available to buy.