IIRC international shipping costs are determined by the location of shipping hubs and the which hubs get the long haul flights. Every additional hop costs more $$.

That said, $200 extra sounds really steep.

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8