I have a Lyman 66A on my Winc. '94, it had holes drilled and tapped for it, or a similar sight at the factory. Your 336 may have those holes too. Have a gunsmith or someone that knows look at it. I much prefer a receiver sight to a scope on a lever 30-30. Nice gun!! The older generation of guns is disappearing, sorry to see them go.
I have one of those 1.5-4.5 Bushnell Banner scopes on a 3006. They are very good scopes for the money. Obviously, I am not going to use the gun for prairie dogs but 4.5 power is plenty for the shots at deer that I will take.