This is interesting, What probably is messing you up are the dimensions, priority international girth stuff for taiwan is 79 inches. Probably u have like 90 something.
The only way to be able to make it for cheap is if you take the wheels appart, in a rim box u can put the 2 rims and the spokes and in another tiny box the hubs. u need a box like 25x25x2 inches (80 bucks) , a 25x25x3 inches will be too big. Since this it wont happen, hope you find a good solution...
Cheers