I have a G37S and looking for some winter tires. I found a guy locally that is selling some G35 19" which I would like to pick up and put some winter tires on. I did a search on the forum and didn't see many who has this configuration. My question is

1.What size spacer do i need if any?
2.What are the cons of having the spacer on for the longer term?

Any help is great appreciated.