So i just need to pair them up
If you wish to sell them as Fly tying supplies they should be paired up. Do some research on the internet and you will see which colors/patterns are popular with fly tyers. Almost all Fly patterns/recipes call for a matched pair of feathers. Really serious fly tyers will buy whole bird skins just to be sure they have a matched pair of everything. If your feathers are in good condition and clean then matched pairs will bring you more money. When I say matched pair I am talking about 1 right and 1 left.