96 gig 5090s from Shenzhen's Huaqiangbei

We're visiting Shenzhen right now, and visited the Huaqiangbei electronics market. I've seen reports of 96 gig 5090s popping up on AliExpress, but never saw confirmation that it was real, so we asked around a little. One seller called a friend, and they said that a 5090 would cost 36,000 yuan and then swapping in 96 gigs of vram would cost another 20,000 yuan on top, so about $8,200 total for a hacked up Blackwell RTX 6000. Not sure it's worth it if the real thi