£160 seems abit steep for a GB. Thats not including postage in the uk and taxes is it.
Whats the price for 10 sets?
Its a good effort u stepping up to organise the GB.
If u got it to £135 all in then you would get more interest. getting round the taxes is tricky but you could get them to only declare the value of each set to $20 or something but then insurance would only be for that value whuch is a touch risky......but ive done it before!