@spaceface , aidan, Your right,could not find a replacement screen, did find a new Texas Instruments TI-30XS Multi View Calculator for $14.99 at link below and one for a bit more at 2nd link, buy this one and keep your old one for parts or sell on Ebay,etc to recoup some money maybe. Good luck. I hope this helped you out, if so let me know by pressing the helpful button.
https://www.walmart.com/ip/Texas-Instruments-TI-30XS-MultiView-Calculator/7696395
https://www.amazon.ca/Instruments-TI-30XS-MultiView-Scientific-Calculator/dp/B000PDFQ6K/ref=sr_1_1/140-9206165-0680467?ie=UTF8&qid=1492048664&sr=8-1&keywords=ti-30xs+multiview