If anyone is still interested in getting a copy of the original big box set, it looks like a number of copies are available now on Discogs, including some sealed ones for about $150-200 (down from previous highs of $300+ on eBay). The download code is still good until Nov. 1, 2021.
https://www.discogs.com/sell/release/14282184
There are also a few of the numbered/signed copies from the UW shop (limited to 650 copies) for sale there.