I haven't technically replaced an 87V display, but I have removed/reinstalled one in order to clean the zebra strips to fix a "missing segments" problem.
Pretty easy procedure; plenty of youtubes to demonstrate.
I haven't experience with the Chinese eBay LCD offerings, but LCD technology is hardly rocket science so I'd expect them to behave just fine. And $16 isn't too large a gamble.
There's a seller on eBay who sells what he claims are original Fluke parts - I have little reason to doubt it - for $40 (including shipping):
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https://www.ebay.com/itm/266136252993(I would have sworn I've bought parts from this seller, but I don't get a "you've bought from this seller" note when I go to that item's page; however any dealing I might have had would have been more than 5 years ago).
I'm not sure what used 87v's go for today on eBay, but if you don't want to go the replacement route - or you replace and don't like what you see - you could likely sell yours on eBay for a decent amount (even with the broken display) and use those proceeds to supplement buying a new meter to reduce your out of pocket to far less than what Fluke is asking to fix yours.