Advanced Custom Fields | Post Object & linking a related custom post type including it's own custom fields.

How does one add the content of a related field type (http://www.advancedcustomfields.com/resources/post-object/) from the ACF ( Advanced Custom Fields Plugin ) to their single page template?

It's important to note that the post-object coming through is also a custom post type, with it's own related custom fields rather than the standard the_content(), the_title() etc.

Example Code:

<div class="type-service"> <?php while ( have_posts() ) : the_post(); ?>

            <img src="<?php the_field('service_image'); ?>"/>

            <h1><?php the_field('service_name');?></h1>
            <p><?php the_field('service_description'); ?></p>

</div>

        <aside class="content-right">
            <?php
                $post_object = get_field('related_study');

                if( $post_object ): 

                    // override $post
                    $post = $post_object;
                    setup_postdata( $post ); 
            ?>
                    <div>
                        <h3>Related Project</h3>
                        <h4><a href="<?php the_permalink(); ?>"><?php the_field('case_study_title'); ?></a></h4><br />
                        <img src="<?php the_field('case_main_image');?>" alt="" />
                    </div>
            <?php wp_reset_postdata(); // IMPORTANT - reset the $post object so the rest of the page works correctly ?>
            <?php endif; ?>

        </aside>
            <?php endwhile; ?>

A little explanation of the above perhaps: I'm getting the $post_object value by getting the post object as described in the link at the top, from a custom field called 'related study'

Then using the setup_postdata I was trying to access custom fields of the object that way.

Although it seems when I run a print_r($post) the containing array has the typical wordpress post properties. i.e the_title() but the post object doesn't contain any of that post types, custom fields?

Has anyone run into this before, do they have examples or suggestions of things I could try, or am I simply missing a trick here and I've gone wrong.

Any pointers would be helpful should you have time.