Woocommerce Sending Custom New Order Email to Custom Email Address - php

Question

I got a quick question as I've been researching a couple of hours and have not found a suitable answer.
Id like to send a new type of e-mail when a new order is made and send it to the email address provided in a custom check-out field.
I've implemented Woocommerce and added extra checkout-fields via the plugin (Checkout Field Editor.
One of these check-out fields holds an email address (field name is [client_email]).
I also managed to create a new type of e-mail via the Woo Custom Emails Plugin.
The only problem I have is to set the recipient for this email with the input from the custom checkout field [client_email].
Any thoughts or solutions?
Many thanks!
I'd find this little snippet:
add_filter( 'woocommerce_email_recipient_customer_processing_order', 'processing_order_replacement_email_recipient', 10, 2 );
function processing_order_replacement_email_recipient( $recipient, $order ) {
// Set HERE your replacement recipient email(s)… (If multiple, separate them by a coma)
$recipient = '<email adress>';
return $recipient;
}
And this is the e-mail template file.
<?php
/**
* Customer processing order email
*
* This template can be overridden by copying it to yourtheme/woocommerce/emails/customer-processing-order.php.
*
* HOWEVER, on occasion WooCommerce will need to update template files and you
* (the theme developer) will need to copy the new files to your theme to
* maintain compatibility. We try to do this as little as possible, but it does
* happen. When this occurs the version of the template file will be bumped and
* the readme will list any important changes.
*
* #see https://docs.woocommerce.com/document/template-structure/
* #author WooThemes
* #package WooCommerce/Templates/Emails
* #version 2.5.0
*/
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly
}
$email_heading = get_option( 'ec_woocommerce_customer_processing_order_heading' );
/**
* #hooked WC_Emails::email_header() Output the email header
*/
do_action( 'woocommerce_email_header', $email_heading, $email ); ?>
<?php echo get_option( 'ec_woocommerce_customer_processing_order_main_text' ); ?>
<?php
/**
* #hooked WC_Emails::order_details() Shows the order details table.
* #hooked WC_Structured_Data::generate_order_data() Generates structured data.
* #hooked WC_Structured_Data::output_structured_data() Outputs structured data.
* #since 2.5.0
*/
do_action( 'woocommerce_email_order_details', $order, $sent_to_admin, $plain_text, $email );
/**
* #hooked WC_Emails::order_meta() Shows order meta data.
*/
do_action( 'woocommerce_email_order_meta', $order, $sent_to_admin, $plain_text, $email );
/**
* #hooked WC_Emails::customer_details() Shows customer details
* #hooked WC_Emails::email_address() Shows email address
*/
do_action( 'woocommerce_email_customer_details', $order, $sent_to_admin, $plain_text, $email );
/**
* #hooked WC_Emails::email_footer() Output the email footer
*/
do_action( 'woocommerce_email_footer', $email );