Cheap Transporter Europe - Japan?

I want to post a small box of around 50 vinyls (9kg maxi) to japan… This packet is too small for the usual fret transporter and if i want to fedex or ups it it s 350€ :blink:
If i go to germany to send it by post it’s 97€ !! it stills really expensive (2€ more by record!!)
Do you have any good plan? it s not important if it spends one month to go to yokosuka…
arigato :)