This looks like a terrible investment

I've found during the corona era that high quality vinyl has become harder to find.  Many of the MoFi titles are sold out or on back order like never before.  Once they come in stock they immediately sell out.  I think this guy's problem is that most of these records are still available from Acoustic Sounds.  There is no reason to pay a premium for them.  That said, there are some great titles in there.  He would be better off selling them piece meal than as a lot, even if it takes a lot longer.  My Discogs account has been pretty active in the past few months.  Many motivated buyers of rarer items I'm selling.