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As for how it would be handled, I think you would continue writing it as a stand-alone story(what it is now). Then opportunities to have some characters cross into in Additional Manuscripts would start to show up, and eventually (eventually meaning sometime after SA) we could have them appear at some point in the main storyline. (That's what we're planning to do with Kal, after all. BWAHAHAHA- I've said too much.) Of course that's all just my initial thoughts, you've probably already thought of all this.
I Â intend to keep it kid friendly, one chapter got withheld because of Simmons making a nuclear power generator in his bedroom, the mods probably thought I meant nuclear weapons. Another I dunno why.Â
I will NOT make it PG, because even Monty Python movies were PG ::P Just kid friendly.
Stand alone does need to be finished definitely. If everyone's ok with it, I may continue it here using the files on my computer.
Good point about the PG thing, that wasn't the best choice of words (or abbreviation) on my part. :P