Great guide, all worked as described. Thanks!
Yes, the screws don't seem to quite match expectations; I used three different #00/#000 drivers before I got a good fit.
Step 7: Could use just a bit more detailed explanation and/or picture. The retainer is on the "back" edge of the connector (facing off the long edge of the trackpad, opposite of Step 6), and takes a mix of delicate firmness to raise. Practice on your replacement (if available).
Step 8: My replacement trackpad came with the trackpad bracket attached, so no need to remove the 6 (orange-circled) screws attaching bracket to trackpad, which can be removed and installed with the bracket attached.
Step 10, reinstalling: Getting the set-screw correctly adjusted was a bit hit-n-miss. My assumption was in far enough to just stop movement, then back off a turn or so. That ended up too loose. YMMV.