I've plenty of working experience of international buying and I've yet to see more than 7% duty charge applied to small engineering or electrical parts  ââ'¬â€œ as I said a rough costing. The shipping costs are those quoted by the supplier previously linked to.

I could do a full costing and doubt it would come to more than £180.

Either way I don't give a monkeys what the equivalent retail cost would be from you 3D because I'm hardly likely to buy if I can make the same (to all intents and purposes) myself.