Need help pricing

Hey all,
Newbie here looking to sell my collection, unfortunately I don’t have the boxes for any of these knives. They’re all 1 owner basically new/very very light use. I do have purchase receipts for most of them. I really don’t know what most of these are worth right now. dm offers/trades I am looking for an arcform slimfoot ti frame lock to either buy or trade for

1.Spyderco Para 2 black/coyote CPM s35vn

2.Spyderco Para 3 CPM s30v black/flytanium og/ black scales

3.Spyderco Manix 2 black scales CPM s30v

1. (need help identifying) WE knife m390 green ti

5.Kizer Sheepdog mini CPM s35vn stone wash/blue ti gold clip

1. We knife 817A Mikkel Willumsen STIXX Flipper Knife m390 Blue ti/cf

7.massdrop ferrum forge knife s35vn carbon fiber

8.kizer october cpm 20cv

9.WE knife roxi m390

10.WE knife angst CPM s35vn