I've got new and used hard to find dyna parts.
2 new dyna tool boxes 64245-97 $125 each
1 used dyna tool box $75
1 new detachable quarter fairing in vivid black 57070-97DH $300
I have one of the toolboxes. I think it only fits up to 2005's, it has a bracket that bolts up underneath the ignition. I put a Powerlet pass-through on it so I can charge my cellphone inside the box. It's a really nice part.
On my 2003 there are 2 bolts under the ignition where the bracket for the box attaches. It mounts on the right side behind the battery box but just in front of the rear fender. HD should have never stopped making this as it's the only toolbox of this style for a dyna.