RSC Custom charges

i know similar threads to this have been made but I can't find anything that answers my question.

i have ordered single figures with rsc 3 or 4 times and never gotten a charge so I'm pretty comfortable doing that for exclusives and what not. 


What hat I want to know is if I order two elites, what are my chances of getting away without a customs charge? 


I want want to order the uso elites and want to know if I should order them seperately or not? 



thanks in advance