Well the Karma train has stopped at Prestatyn Station, and by God it's a big box. Only halfway through spilling it's treasures over the living room floor whilst catching up with today's Olympics highlights (well done Tom!).
I'm not going to spoil it with pictures, but people down the chain have been very generous with their additions - thank you all.
I'll dig through my hoard of parts and pop some bits in, gimme a bit of time and send it on.