At this stage, any replacement display isn't going to be that great, and what would be available, is going to be very expensive.
If your touch/display is working, you're better off sending it off to be refurbished.
Also to note, I believe you lose truetone, the JC programmers only transfer serial data, but not truetone from 12 upwards, as this is now stored on the glass chip along the bottom of the display, rather than stored on the flex IC chip like previous models.