Woocommerce change in stock text and display variation quantity.

I have a woo-commerce website and I need a customization to the PHP. I want to change the "In Stock" text on a single product page. I have used this function code: // Change in/out of stock text //@LINK [login to view URL] add_filter( 'woocommerce_get_availability', 'custom_get_availability', 1, 2); function custom_get_availability( $availability, $_product ) { global $product; $stock = $product->get_total_stock(); if ( $_product->is_in_stock() ) $availability['availability'] = __( $stock . ' Needed!', 'woocommerce'); if ( !$_product->is_in_stock() ) $availability['availability'] = __('Need fullfilled! ', 'woocommerce'); return $availability; } This code works to change the text, however it returns the global stock amount on variable products. For instance if I have a product with 4 variations and I have 10 of each variation it displays as 40 needed, rather than 10 needed for variation 1, 10 needed for variation 2 ...etc. I would like the code to display the amount in stock for each variation and my custom text.