U.S. Skyline import conversion

Can anyone in Japan do the neccasary conversion to a skyline for U.S. import?
I know it is only (atleast legally) done in the U.S. by motorex, but is there a way to have a legalized before it ever gets on the boat. I just know that the U.S. will screw me over the second a skyline touches american land.
IF there's anyone in Japan who knows what to do before it gets here i'd appreciate it.

Thanks

Its not a matter of doing the "modifications" its a matter of having the ablity to certifi the car as US Legal.

This can only be done in the US (funny that) and so far only Motorex has taken the nessasary steps to be able to do it.

And this topic has been gone over and over and over before. No need to continue it.

Thankyou come again.