Hey SB, you mentioned the ETALINE RUK fans that are similar. Have you tried them? I did a quick search the other day and couldn't find any listings for them :/
Here you go mate: http://www.justfans.co.uk/advanced_...ine&osCsid=975gf7l3aib6n6ek0u241ob704&x=0&y=0
I have used them in the past and they are great fans and they move a lot of air.