Beginner or experienced caster?
For a beginner, a 5wt, 9' with a Weight-Forward Floating (WFF) line. Cast a few different rods to see which action suits the way you want to cast.
For an experienced caster, a 3wt 7.5 to 9 ft (Longer casts, longer rod) with a WFF or Double Tapered line, depending on how much roll casting (DT) you plan to do.
9' tapered leader to 5X. About 18" of 5X tippet until the leader starts to thicken, then 4X.
I like furled leaders for casting, but I get hung up too much, and always mess them up.
"The cheese in the mousetrap is ALWAYS free"