As mentioned above, if you and your friend can take the time to get a handful of good photos of each and list them on this forums classifieds… we are your target audience. Every item you listed is highly desirable and I believe would sell quickly if priced right.
That’s certainly a bit more hassle, than say taking them to a consignment shop, but you’d pry also maximize your value. Plus we love buying them here: no tax, no CC fees, buying from a fellow enthusiast, etc…
As far as pricing them, when checking closed auctions on GB, keep this in mind too. If a gun sold for $1,000, that means the buyer likely paid (and was willing to pay) more like $1,150 - $1,200 after tax, CC fees, shipping and transfer.
Good luck and thanks for sharing!