So many questions!
It was a somewhat conventional junkyard at one time, but the guy running it (neighbor's brother/brother-in-law) is retiring. Most of the cars are gone. I gave away the rear washer nozzle and antenna base. I gave my mother the touchscreen, hers stopped working. Those touchscreens go for at least a couple hundred dollars, if I remember correctly. A friend went up there and got some parts for himself, I don't remember what he took. I need to go back and get the cats and the steering column. The electric power steering is apparently a popular hotrod power steering setup. Dash trim, radio and the donut spare are other higher value parts.
A search on eBay for sold listings of used parts for a specific car is how I decide what parts are worth selling.
I'm keeping the backup camera for myself! And I put the antenna mast on my Insight!