Hi @AltheaC
We’re BSS Commerce - Shopify Partners & Experts providing Shopify apps and Store Development on Shopify & Shopify Plus.
We’ve carefully checked your requirement and of course we can build an customized app for your demand. So we suggest hiring a developer.
It’s what we can help with an optimal solution. If you need help from our expert, kindly share your request with us via Shopify experts.
We will check it and give you a detailed solution. We’re looking forward to working with you.