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uh-oh an endeavor like that is going to bring you very close to getting lost in squiggle town, the treacherous purgatory that has swallowed many a writer. Lately, I've found myself using a combination of character sheets and plot ladders.
Character sheets are relatively straightforward: name, age, description, how s/he speaks, how s/he is with people, worst thing that has ever happened to him or her, items in pocket, what s/he wants most in the world, and what stands in the way of getting it.
The plot ladders are really quite spare. They might have a line or two of prose, but unlikely. They have a setting, list of characters present, list of things that need to happen, and the suggestion of a hook to end it. That's it.
Most importantly, just gotta keep to a schedule and stick with it. Be disciplined and never stop working. My hiatus' from this site are usually to realign my writing effort; don't let NC take more of your writing time than this project.