Blogging With Top Level Domain In Blogger
Charge For Domain Name
You have to pay the charge for domain name only which is around $4 USD per year, you don’t have to pay for hosting charge because hosting will be through Google which is free.
How to buy a domain name ?
Buying domain name is easy, you can check this link Buying Domain Name For Blogger
It is feeling like you have a site on net in just $10.