http://www.robertwinter.com/pinball/restorations/sttng/teardown/index.html
Great site that I used to supplant pictures I took when I did a swapout several years ago.
STTNG isn't as hard as some other games.... I remember Taxi being a PITA as you had to slide the ramps into the machine from either side at the same time, but that's probably because I didn't remove the PF from the machine, and the posts are all very similar heights. (shop out only not a swap)