Chosen Solution
I replaced the glass digitizer. In the process accidentally ripped off the Wifi/Bluetooth antenna. I replaced that and the glass but for some reason when I reassembled everything, the home and power button are not functional (only to turn on but not to wake or sleep). The volume and mute button still work fine.
if the volume buttons work but the power button does not you have likely torn through the cable on the top right hand corner of the iPad when letting the digitiser, it can be replaced following this guide..
You can also turn off the lock/unlock feature by going to Settings - Display & Brightness - Then turn off Lock/Unlock. This should allow your sleep/wake button to work again. If you want to actually fix that feature, you will need to replace the power/volume flex as rayeasom mentioned.
