Hi Fireleaf,
You can add your ACF fields to an existing form by setting the “form” parameter to false.
https://www.advancedcustomfields.com/resources/acf_form/
<?php acf_form( array(
'form' => false
) ); ?>
You would still need to add the <?php acf_form_head(); ?>
to the top of your template tho (before get_header()
).