"in2minds" wrote in message ...
"so i'm wondering if anyone can think of something (a little narrower would be
fine)similar which would do the job just as well and ideally be available second hand "
[..]

a 3 draw office cabinet ??
lose the draws and you have a box container just need a lid, if it's too small you could
use another for the lid to increase the height.

I'm sure I did start to think that way, but I was thinking 2 drawer 3
drawer is prolly a better shape.

I think I saw a rather sad one here the other day I shall go for a
prowl round the site.