$1140+$1000 for the Momo wheel yes.
Isuzu Japan can supply the parts, it's whether your Isuzu dealers in the US will order JDM parts?
Try asking Merlin at St Charles Isuzu if not you could try an English Isuzu dealer but it does get complicated.
If for export you probably won't have to pay the 17.5% tax but obviously the extra shipping costs & any US import tax on top.
I'm looking fo secondhand parts, both JDM & US, but they are difficult to find.
Clive