Custom SaaS E-Commerce Platform

I’m looking to have a fully-hosted SaaS application built so my company can sell its own physical products online under a single, centralised system. The platform must handle everything from browsing to checkout without relying on a marketplace of third-party sellers—only my catalogue will appear... (Budget: $750 - $1500 USD, Jobs: AngularJS, Cloud Computing, JavaScript, Node.js, PHP, REST API, SaaS Development, Vue.js)