All in Ones, which require the least mods?

[silverplanet]

i am also thinking of setting up a aio in the future just doing research know. only keeping zoas and gsp in it but i am wondering how much the duty fees would be if it was shipped from the states. thinking of a nano customs unit since all the mods will be done already. anyone have experiance with cross border shipping and fees that would be ontop of a $600 dollar unit.any input would be great.

Jason