Jim has already said that he has tried a variety of tools over time and that he wasn't pleased with all the results....
Reviewing my work on Dreiser "Genius" -- another really big book I did at Michael's request -- I find that this is a case where I tried using a DP tool -- sorry I don't remember what it was -- at that time I was still trying to make my peace with working with DP, or not, and I thought that this was a big book where college students might indeed want page refs, and the DP tool "supported" page refs. Well, I used the tool and it more-or-less supported page refs putting the page refs about +/- one paragraph to where the page actually started, and then I spent literally the next three days fixing all those page refs so that they would be more correctly positioned, after which I said "never again!" [Not to be taken as a complaint of DP, I've just decided I'm personally not cut out for waiting 1+ years for "my book" to pop up off and on queues -- and when it does pop up off a queue I'm probably out of town that week]