I'm happy. Parts have been delivered and fitted -- new case, new nub, new LCD cable, new LCD digitizer... It's good as new, with the added bonus that the touchscreen can now be used without requiring 900 giganewtons of pressure. One word of caution regarding the cases: the new one did not have the pen housing bit that clips over the SD card ports so make sure to keep the one from the previous case.
The new LCD cables look highly improved over the iteration that was in my 1GHz unit. Instead of that thick, conductive screening foil tape that was stuck onto the back of the original cable, the new one has a very thin conductive layer as part of the cable, making for a much thinner and noticeably more flexible cable. They should (hopefully) fare considerably better.