Not OP, but someone who is very familiar with this space: Hosting... Don't do some crazy VPS thing, you don't want to worry about being a sysadmin. Dreamhost h

Not OP, but someone who is very familiar with this space: Hosting... Don't do some crazy VPS thing, you don't want to worry about being a sysadmin. Dreamhost has a good WP setup with most things you'd need ready to go. There are lots of other "managed WordPress" companies too. Email, just FastMail or G-Suite (Google Apps). Probably just the latter because it's familiar to most. Registration is pretty negligible these days. I like Namecheap and their corporate values and support.