specialstage.com is a rally site, but they still trailer their cars, and their classifieds might be another good place to look.
Full classifieds:
http://www.specialstage.com/classifieds/
Trailer classifieds:
http://www.specialstage.com/classifi...cat.php/cat/16
Looks like there is currently only one trailer classified, and it doesn't say the location.
http://www.specialstage.com/classifi...uct=106&cat=16
If I think of anything else, I'll let you know. Is this for the RX-8?