Is there a way to get a replacement screen?

I would definitely avoid:

• Normal (brown) Gorilla Glue (it foams and expands)
  
• Superglue (it can leave a white deposit)
  
• Acetoxy/Acetic Acid Silicone (the acid it gives off when curing could corrode components inside)
  
  

I'd suggest "Neutral Cure Silicone", probably in black. Something like this looks pretty good:

https://www.digikey.co.uk/en/products/de­tail/chip-quik-inc/NCS10B-20G/10059560

But even a bathroom sealant you can get from a DIY store (you may even have one in a shed) should do it - the main thing is ensuring it's not Acetoxy (if you smell it there's a harsh vinegary smell).

Araldite/Epoxy would work fine too but I feel like you'd probably never get the display off again with that!