Depending on the price of the parts to repair the screen, it might be cheaper to just buy a used T2x. The thinkpad t2x series is selling for under $300 on ebay.
If you want the IBM service manuals, you can download them from ibm.com. Just search for thinkpad t20 on their website. Their manuals are VERY DETAILED and will tell you exactly which screws/parts to remove and in which order.