Solved it, just had to keep working on it!
In case someone else may want to do something similar I’ll post the solution below.
else {
global $wp_query;
$postid = $wp_query->post->ID;
echo get_post_meta($postid, 'custom-field-name', true);
echo "?[...]";
echo "<p class='readmore'><a href='";
the_permalink();
echo "'>"."[Read More]</a>";
echo "</p>";
}
}
?>
The parts added/modified from what I was working with and previously posted:
global $wp_query;
$postid = $wp_query->post->ID;
echo get_post_meta($postid, ‘custom-field-name’, true);