Is this really that great of a find though
i mean- maybe. it's an opportunity to buy a bunch of various **** without having to deal with much of a hassle, you'd just have to want all of the **** for it to be a deal.
otherwise, on value i'd put the lower half (crowned and down) at about $325 for the 24 keycaps, and above that would be roughly $4275 for 22 keycaps. so you'd be paying $5500 for $4500 in keycaps. and since there are only two "rare" in-demand keycaps in this (topre cosmic dusk and bs nebulus, you could maybe argue on the bs hc white), there's not enough incentive to overpay by that amount. really the sale price should be less than $4500 though because there's so much trash filler that's going to wind up being a negative value due to the shipping/fees to get rid of them.
and the seller is likely ionutz.