Donor Car Part Out- What parts are valuable to resell?

Did some research on Ebay today. Looks like the following parts might be worth pulling:
Ignition switch/module: $150
Police chassis module: $70
Trans module: $97
Gauges (police uses 160 mph "certified") $200
Taillights might be worth pulling since they were used only a couple years.

Couldn't find info on the rear gears. I'll have to crawl under it and look at the tag.