The new display is here and working just fine but I was in for a big surprise when I took the cracked one off. The adhesive had "set up". The display was now firmly attached to the case! I had to use the pizza cutter tool again to take it back off. 😮
I'm out $446. OTOH, I'm going to upgrade to a 2019 and a close friend has offered me more significantly than the current eBay value for this 2015 so I'll break even.
Sure would like to have that $446, though. 💸