If you're selling your home within two months, get the spray-on, because that's just about how long it's going to last. Either of your replacement bids seem incredibly low to me.

Following

I just got a bid to replace 125 linear feet of coping, replace the decorative tile beneath coping, and exterior refacing of an existing fountain for 16,000. Plus they are booking 10 months out to next spring. We live in an expensive part of St Louis, and it is a well regarded firm, but I do feel like my bid is quite high so we are pursuing competitive bids. As a rookie pool owner, 1,800-2,800 for 110 ft coping replacement sounds low but I certainly wouldn't mind if that were my quote!

this is the last pool i resurfaced our materials stay cooler then any other i have found texture is adjustable just have to make sure the person who does it is good at what he does

https://tigertoothcoatings.net/