Its about seven months of work on and off, so far. I'm thinking there will be another two before it is finished. Its certainly been interesting. Its been thought provoking enough I even have ideas for another two base classes, although those will not be appearing anytime soon.
To finish it off, I need another PrC, some more rituals for the Martyr, and Ritual Warrior, and then monsters and templates (I have about 6-8 ideas here, but this is my weakest area), and some items and artefacts (never made these at all before). And after that, the big cleanup. So, its getting there, but not there yet.