for a single page of my site (The homepage, specifically) I’d like to set up a significantly different template. I recognize the power of the template builder, however there are two features I don’t see that I’d need. I can write the template page, however how might I integrate it without affecting the rest of my site?
Do you want to create a different template for the homepage? Duplicate the template-portfolio.php, change the Template Name: Portfolio to Template Name: Home. Edit the content and layout. Edit the home page then select the Home template under Page Attributes > Templates. If you have the time, please check our latest theme, Enfold. You can create multiple layouts for different pages on the fly using the Advance Layout Builder.