If you're re-assembling, and following in reverse order, I found it easier to complete step 54 and THEN step 55. The iSight camera cable connector was easier to put back into the socket BEFORE sticking the cable back onto the fan housing.
When re-attaching, the bracket holding the antenna cables to the bottom hinge should go on before the bottom T8 screw (so, hinge, then antenna cable bracket, then T8 screw). Additionally, I recommend you don't tighten that bottom T8 screw too much at this step. Instead, wait for step 73 to tighten - so the second T8 screw (that also goes into the antenna cable bracket) can be aligned first.