Yesterday you might have seen the disassembly of the Nokia Lumia 920 by LE55ONS·
Part 2 looks at the digitizer, glass and LCD replacement.
This is the first high end Lumia with a replaceable digitizer.
I’ve found one supplier selling them but they are out of stock which is not surprising.
They list a complete new screen assembly for $165USD (£108GBP) or the digitizer glass for $46USD (£30GBP)
DIY Repairs will void any warranty but may save £$