1968 Dart Build

I've been out of the Mopar scene for a few years and I'm not sure what some of these things are worth.
I'm not looking to rip anyone off but I don't want to get ripped off either.
Any help would be appreciated.

Complete a/c system
Front and back seats
225 engine and/or trans
Rear defroster system
Rear
Front k-member

Just a few parts off the top of my head.
Thanks