Does anyone have an idea of the price for these adapters? Might they be a source for a cheap(er) CHAdeMO plug and CCS2 socket?

Hi,
It cost 400$ for their clients (GBT/DC to CHADEMO port replacement service). But how much it cost separately you can ask directly here https://t.me/chademoforchina ...

Hi,

ChargeSpy developer said in Telegram group, their adapter can work with Leaf or other car after 2015 which supports V2L. I guess, they using CHADEMO pin3 (12V to V2L adapter) to power up internal electronics.