Well...
Seems like the documentary version of HTDTE may not be going ahead. Citing two existing similar documentaries and (implictly) the fact that we haven't spoken to each other in months, my contact at the production company in New Zealand has called the thing off.
To be honest: this is partly a relief. I have enough day-to-day concerns of my own right now, what with 1) work and 2) finding work. I do want to make at least one more miniature episode, but I'm much happier doing so on my own terms. Making a book out of the project seems a whole lot more likely in any case.