Hello Ed,
Since the phone is new, parts and guides are not available, in the next 2-5 when iFixit can make the parts and guides then they will sell kits and provide instructions. I tried to find some on other websites but the only options are to either call a third-party but most likely they will not have parts, send it to Google for fixing or buy a pixel 5 off eBay used and take its screen. If you can live with it for a few months then I would recommend just living with it for a few months until parts are available for us to buy.
Happy Fixing!
-Javen