Oh my. That's some seriously old gear. Forget about what 'new ones cost'.
Also, forget about C/L. Classifieds on here or some of the FB groups would be a much better place.
As far as the rigs go:
You need to find out when they were last repacked.
There should be a packing data card, it should be in a little pocket on the back of the label with the serial number on it (I think). That will tell you what reserve is in it and when it was last inspected & repacked. How many packs are on it (that matters) And who did it.
You'd have to open up the main containers to see what main canopy is in it.
Depending on the mains, there might be some value. But not a whole lot.
There are a lot of riggers out there who won't pack or work on gear that old.
However, you might find a newer jumper or a beginning camera flyer who would want one for a turn rig. Maybe.
The altimeter might be worth a bit. Most of the kids these days go for digital, but some of the 'crusty old guys' prefer analog. The chest mount pillow is popular for wingsuiting.
The Astra & Time Out are obsolete. Interesting conversation pieces.
Same with the camera. Is that a Digital Video Tape unit? The lens might be worth a couple bucks, depending on quality.
Helmets are likely junk. Nobody will want to wear them. Not sure about the sights & mounts. Those might be worth a couple bucks.
Suits might be worth something (not a lot), if they are in good shape. If the material is worn or rotting (more likely rotting), then not. The problem with used suits (and the reason new ones cost so much) is that they are custom made to fit the buyer. Finding a buyer for a used suit depends on finding someone it fits well.
The log book should have some dates and the name of the owner in it. I don't know if you'd find anyone to buy it. Kinda creepy.
If you aren't a jumper (sounds like it), it might be worth your while to take all this out to a DZ and see what they say.
Are you in the LA area?
Perris has a big gear store, and they'd be able to tell you what you have for canopies and all of that. They might give you an offer (lowish), offer to sell it on consignment (for a fee) or tell you to toss it in the garbage.
I hope you didn't pay much for it.
I can't see it being worth more than a few hundred (total for the entire group).