Oops

- apologies Green Knight. I (foolishly) assumed your 'Co' was the British English abbreviation for 'company' - and didn't think of the US English abbreviation for Colorado. I should have known better - the lovely Mrs Airsound comes from Ca.
As to all your costing figures - I might have to get back to you on those later....
airsound
from Gloucs, or even Glos (Gloucestershire)