i cut the access hole on the inboard rib today with the poc fly drill i got. i thought i was going to get killed a couple of times, but it worked. i'll have to be a little more careful on the right side, i almost got clipped a couple of times. then i got the ring drilled in. i think i'll use some proseal to install the ring, so i'll wait till i'm in sealing mode to put the anchor nuts on here. maybe overkill, but thats alright.