Someone wants to buy a complete bike I'm selling, he's in Brazil, which normally isn't a problem. But the USPS website is saying 600 dollars for a 17 lb 27x27x8 box (I was planning on breaking the bike into two wheelset sized boxes). The USPS website only gives me Global Express as a shipping option, no Priority International. Something has be to off because I shipped a DH frame (in the same size box) last year for 67 dollars. Am I missing something?