Most of the Japanese tuners can modify the header to fit LHD drives. Kameari is making me a LHD header for my car. The Fujitsubo SUPER-EX header will need modification. Also, if you can find a TRUST headr, it will bolt on, no modifications.
Edit: the Trust header is 600 new. If you can source one.
As for shipping, I had a Fujitsubo Legalis-R muffler shipped from Japan to Canada for a measly 150 bucks. Insured. It all depends on your rep.