I just pm'd you with my work email and number.
We did use and outside firm to help with the documentation and testing this year. It was expensive but they were great and a tremendous help and provided shoulders to cry on! What a harrowing experience...equals BSA and about as much payback.
Much depends upon who your outside firm is. Our externals required incredible detail and had hot buttons (like FAS 91) they harped on. We actually found some stuff in FAS 91 we had to fix but it was immaterial to our financials and we convinced them of compensating controls.
I know other banks where FAS 91 didn't even come up. We seem to have emerged older, wiser, and with no material weaknesses as far as we know.
The testing is tricky. Hopefully your externals will at least share their expectations re sample sizes so you know what to shoot for. Ours wouldn't and then would say "that's not enough" (sort of like banking regulators).
What they expect in documentation can vary as well. We had to write very detailed documents that explained processes from beginning to end, and in the document state the risks and the controls. Other places I know were able to use audit documentation. Didn't fly with KPMG.
But we have great documentation now that will really add value to our audit process!
The fun part is when you do your testing in the 3rd or early 4th quarter and then have to go back and do 'roll forward' testing through year end.
Give me a buzz. The OCC won't be in tomorrow or Friday!