Thanks a bunch. Finally got the bits and pieces I needed.

Ran into a little problem later though - is there any way to mount the 14" fan without using the clip (part 13 - provided). For instance, what size screws do the holes in the fan take? That would get me started on bolting the thing down.

I appologise but I am simply terrible at misplacing parts.

Anyway, I appreciate your help so far, and I won't 'take the piss' as we say in England by requesting a third part. If you could suggest to me how I could connect the fan with nuts and bolts, and what size said nut would be (M4, M5?)