Hello, I have gone through your requirement and flow and i can assure you that i can develop your contact form with google captcha to check for not robot & contact form will be emailed to you with attachment. I have 5+ years of experience in PHP Web Development. My PHP experties in various frameworks like Symfony,Codeignitor,Cake PHP etc. CMS like Wordpress,woocomerce Ecommerce like Magento,Prestashop,Opecart etc.
Please contact me for further discussion.
Regards,
Javal