I think it was Kevin Crawford who said recently that the difference between people who design games and those who don't is the ability to do tedious work.
I've been using that quote to motivate myself this month. No interesting rules design or playtesting for me, just tedious, necessary editing of the main rules document.
The past two weeks I have been integrating my game design with the SRD. This basically means pasting the SRD, piece by piece, into my word processor, highlighting the parts that need to be changed for Karma in the Dark, pasting those unique parts into the document, and leaving notes for myself about where to come back and edit so the parts flow together.
It means v.3.0 is starting to look like a real document, but the work is slow. I think I have 1/3rd of the rulebook done at this point. I expected this to be fast since 90% of the final document already exist, either in the SRD or my unique rules, but it turns out my brain can only sustain focus for short periods of time after work.
So this will probably continue to be the next few weeks or month: the slow, tedious work of editing together two different documents.