Hi,
Nope, it is the BASE rate, plus weight (including packing), which is notable. Anyway, you choose the most optimistic view, I choose the "prudent" view for a business. Even only 7% Duties don't change the bottom line much.
So, bottom line the Materials are £ 180 to £ 210 (depending on estimates, specific materials, bank/credit card charges etc.) for a 2m Set yes?
Ciao T