The two, 37-year-old Wayne Dalton garage doors pictured have just been replaced. The panels are insulated. There are four panels for each 9'x7' door. These doors have a manual locking capability that was never used.
Hardware joining panel-to-panel and rollers should be all there, unless I missed the bag during disassemble. Reinstalling these doors in a new location might take some effort as the cables and cable connection brackets are showing their age and rust.
The $2 listed price is for all 8 panels and related hardware. If you are a good negotiator, I bet you can get everything for less.