Plugin Customization (Wordpress)(Add to Quote)

I currently have a website with many Custom Post Types that I need the ability to add to a quote system. There is a plugin we currently have called "Request a Quote for WooCommerce" by Addify. The plugin works when adding woocommerce products to the quote, but I can not get it to function with my Custom Post Types that I need to add. I'm looking for someone to make some adjustments that can allow it to add our custom post types.

*I am open to an alternative option, but we need our contact form to include the quoted items requested via email to our team.