Hi @clcastr2, yes to both questions, you can completely modify the snema info items, depening on the info needed.
The rating part of the snippet will show the review rating, although you can add a rating to most schema types.
You create a site, update your code, put that in the head and republish.
You can get it 100% correct by using the google structured data tool linked above, let me know when you start working on it, and if you need help, send me the link to the site and I am happy to look further: Share a read-only link | Webflow University
I hoep this helps!