Webflow + Memberstack: Advice Needed for Custom Order Integration

Hi Everyone, I got my first job for Webflow + Memberstack, Yay! I have some queries that need to be fulfilled before I begin building. The client has an ecommerce store and has a premium community. In the community, we have a form which users can submit for a custom order with a custom design via an image, My question is should i go with the memberstack and make integration for file upload or just upgrade the package of the ecommerce platform. the image just need to go to the email for the order along with other details. thanks in advance