And now back to the woodwork for a bit. I'd walked away for a while as I couldn't get outside to do any cutting - MDF and snow don't go too well together. Front facia board cut out in one piece. It needs tweeking; the profiled edge is too high, but it's easier to do this, put in place and then take a little off, rather than the other way around. The piece of hardboard at the back will be cut today and wrapped around as a backscene. So everything at this point is variable until it reaches a certain point.
In that respect this link that Miles Bevan sent me this morning may have some relevence. http://en.wikipedia.org/wiki/Uncertainty_principle