When my original bed warped, i ordered new glass from a local glass shop with this schematic attached.
6mm thick regular glass with sanded edges and drilled holes costed me 590RUB.
It worked perfectly.
Until i raised bed temperature. When it heat up 100°C it cracked.
So if you going to replace your bed with regular glass one, i recomend you not to go above 80°C
Heating element removed easily from original bed. I just heated it up and peeled it of.
All adhesive stayed on heating element and i just stick it on new bed.
When my new bed cracked, removing heating element was a nightmare of sticky glass shards everywere.
I spent 2 evenings patiently scrubing off original adhesieve from heating element.
Perhaps, if i ordered a thinner glass, it would not have cracked. 6mm was probably overkill.