Welcome to the forums, by the way, first time I see a post of yours.
It's my opinion that you can sell anything you take out of your airstream except for mouse nests and rotted flooring.
However, I would stress that, as Silverleeper
pointed out when this thread began, the best
way to sell any of those parts is in our free Classified section, for which you can see a link at the top of most pages.
That is where people go looking for parts, and there is a good and easy-to-use structure for doing it.
Since it's free, put them all up for sale; you never know what another member needs! Remember to put them all in one post, as pointed out in the Community Rules.
For parts, I urge you to put them all together in one post
, and put lots of good clear close-up photos for them. Be sure to fill out the form as completely as possible, it helps for people that use the search.