Replace front door hardware with Baldwin

The Baldwin entry hardware that the house came with has fallen apart.  Maybe it was scrapped up by using copy keys.  I don't know.  It was probably installed in 1979.

I want to replace it with the same thing.  Though maybe I'd switch from brass finish to nickel finish (on an oak door?  can I do that?)

Looks like what I've got now is the Baldwin New York series.  Thank you, internet.

I'd prefer a combo lock on the front door, but I haven't yet seen one I can stomach.  That's the problem with a lovely front porch--it makes me picky.