I have no experience with shopify. But I am a expert frontend web developer and very good with technologies and websites. I believe that I can research, learn to complete this project perfectly. I always reply almost immediately. You can see my reviews I always do a excellent job. This project can go between 200 - 400 USD. Maybe I will not be able to do all the things you mentioned I'm not sure. But I can do most of the things. Please initiate the chat to discuss more. Thanks.