I import things from the states all the time, I can tell you now Fed-Ex will NOT forget, they chased me for just 35 euros for about 3 months before I recieved a visit from the balifs. Forgive me for saying so but why on earth would you want to fiddle the tax anyway ? It seem everyone gets upset if an MP or big corporation fiddles expenses or taxes but the average man in the street see it as his god given right to avoid duty wherever possible. Suck it up and pay.
One of the reasons british high streets and small retailers in are in such a piss poor state is because of people want everything for as cheap as possible and buy from overseas without considering the consequences, how many people bleat about outsourcing and call centres in India etc but will happily buy from abroad to save a few pennies ?
Also if you get clobbered for import duty etc the thing you're buying often works out more expensive than buying from home, and if it breaks the guarantee is only valid in the country of purchse so you have to send it back to the at your expense.
Since when can you buy a 18 year old bike in a shop in the UK? its pretty obvious what i bought is a retrobike
Its a piss take anyone has to pay tax/duties on a 2nd hand item, its not hurting retailers/high street shops.