It really is a flexible recipe, and I think your numbers are fine. I'd up the hops to 1/4 oz, but that's only because I wanted a little more when I did mine.
Start with the base recipe, and then try something a bit different. I've only brewed the original recipe once, but I've brewed variants of it several times, and each one has been tasty. It's a fun journey, experimenting for the taste buds, and you can't really go wrong.