I've got a pair of 30mm aluminum Z32 front calipers for sale. They're off a Z32 that was working fine, not some mystery junkyard car. Do not include pins, clips, just the calipers themselves and the mounting bolts/lock washers.
$175 plus shipping
email me if interested: rrozyck at gmail d0t com
Now, with pics!

Wow, they look like Z32 calipers, shocking.