If it indeed has no chassis damage, then this is a bargan for someone!
It's an easy fix too...
http://cgi.ebay.com.au/Datsun-1973-240z_W0QQitemZ290307074786QQcmdZViewItemQQptZAU_Cars?hash=item290307074786&_trksid=p3286.c0.m14&_trkparms=66%3A2%7C65%3A1%7C39%3A1%7C240%3A1318
Item number: 290307074786