The 1966 is worth $120 or so, problem with selling someplace like eBay is the fee that arises from the money bound in the face value - best to sell it someplace like this.
They are worth at least $100 a piece, because many banks would probably accept them for face value. I've received older $1 and $5 bills from banks. It's hard to tell from the photos, but it looks like most have creases, so it's likely that they don't have much value about face value, but an expert may chime in with more information.
It’s ironic that the note worth the least, is in the best shape. There is some premium for the top and bottom note, but not too much because of condition. $100 note collectors are a picky bunch and usually look for CH-CU notes unless extremely rare. The middle note is a spender for sure.
On the other hand, the middle note does have a birthday serial number, 04-21-1963. If you can find anyone with that birthday, they might appreciate it....
I like the red seal, just because its something out of the norm, but it still doesnt Carry much of a premium