If anyone is still looking for a storage for their #HomeLab I can recommend this Lenovo D3284 with 84x 3.5" bays from here: https://www.ebay.de/itm/376604039129
And interestingly it even went down in price since November when I bought mine.
799 Euro + 140 Euro shipping - that 10% discount (with max 50 Euro) = 889 Euro.
That is 95,45 cheaper than what I've paid. (Note, no drives included).