It all depends on a few things,
If its a special edition or team CSL you can be looking at $2,300+ easily
A normal used CSL with out the cf tips will go for about $1,000
With the tips I'd say $1,200
A team luxe 2.0 will go for like $1,800 ish as far as I've seen them in BST
Stock luxe 2.0s go for $1,100 ish
So it really all matters on rarity and condition.