Quick follow up... So I went ahead and contacted Witrigs about part number SKU: 111329. They checked it for me before ordering and said it was OK. I got some 12mm Mammoth Power grip double-sided tape (cut into 4mm strips) and fitted the new screen last week. It works 100% fine and near-original waterproof. I also added a Tempered glass screen and had an issue with the proximity sensor sending the the screen black when making phone call (common problem) , but quickly sorted this by going into the Settings>Accessibility and ticking the 'power button to end call' option. Reboot the phone and then the sensor re-calibrates. Works fine now.