Removing headers & footers

Hello,
I’ve been scouring the forums and every time I think I’ve found the answer, it doesn’t work for me. So I’m resorting to posting a new thread.

I have a page that I want to remove everything but the “body” – or, I guess the content. I don’t want a header or footer or anything else.

I have a PHP that uses the custom page PHP as a base:

get_header(); ?>

		<div id="primary" class="content-area">
			<div id="content" class="site-content" role="main">

				<?php while ( have_posts() ) : the_post(); ?>

					<?php get_template_part( 'content', 'page' ); ?>

					<?php comments_template( '', true ); ?>

				<?php endwhile; // end of the loop. ?>

			</div><!-- #content .site-content -->
		</div><!-- #primary .content-area -->

<?php get_sidebar(); ?>
<?php get_footer(); ?>

If I remove the get_header, get_sidebar, and get_footer lines, I get a PHP parse error when I load my page.

My site is being a corporate firewall, otherwise I’d link to it here.
Thanks!