A plain jane full length 2 die set will be just fine.
If you were going with a progressive then there is no real penalty to the 3 die set as multiple operations get performed in the same pull of the handle. But with a single stage or turret press each additional die is just en extra pull of the press handle to split the neck sizing out separate from the body sizing, a waste of time and effort IMO.
I like to get the sliding sleeve competition seater with its micrometer top for my precision rounds so I can easily and precisely adjust everything.
But if youll be setting it once and forgetting it then just the plain seater is fine.
You can also add a micro top to the plain seater, it just doesnt have the sliding sleeve, thats what I have done to all my normal seaters now.