Based on the options that you picked, here are the best ecommerce website builders that we recommend for you to build your online store:
Wix has a large selection of professional, ecommerce oriented templates to help you to build your online store. With an intuitive drag & drop user interface, a growing Apps Market, Wix is a good choice for you to build your ecommerce store.
They have a good support system, including phone & email support, large library of help articles & a forum for you to post questions.
Squarespace gives you eye-catching & responsive themes for you to choose from. You also get extensive styling options to customize your design. But you can only use Stripe as a payment processor, which can be limiting.
Weebly is one of the easiest ecommerce website builders you can use to build your store. You also have access to the codes so you can customize your design if you want to. Phone, live chat & email support is provided to you.