Our primary choice for eCommerce software is OpenCart. OpenCart is contemporary open source software with a large developer base. Highly customizable and scalable with many addons which can provide extended functions. This allows us to develop the site tailored to your business model and needs.
We are familiar with most all online store solutions and can help you with your preexisting site.
All our sites are developed for ease of maintenance by the end user.
For practical suggestions let us help you here.