Hmmm. Zonbu, eh?
I've been trying to gather bits with the intention of fitting PC guts into an Oric Atmos case...
...components so far are either horribly overpriced or industrial mobo suppliers won't deal with me... (the b*stards!)
...butchering a couple of these may well be a practicable way of completing this and another project I've got on the back burner...
If in the meantime I can't find the info via the 'net would you PM me with some measurements & what you think of it?