I have 4 stabilizer arms that I removed from our TT when we traded it in.
They are in excellent condition as they were only on the trailer for a couple of months.
$75 for all 4.
I also have 2 scissor jacks.
$35 for both. One of them has a slight bend in the bolt that raises/lowers the jack but it doesn't impact the operation. It was like that when I got it and it wasn't worth the hassle to return it.
Located in the North Dallas Texas area.