We are going to use the UUA website template. When buying a "plan" to start using Wordpress, there are 4 options: Free, Personal, Premium and Business. In order to use the UUA template do we need to buy the Business plan or can we get buy with one of the less expensive plans? Is Wordpress where we should buy and register our new domain name? Will Wordpress also be the "host" or do we need to find another hosting site? Thanks.