Get a quick and nice website built with Wordpress OR have a woo-commence based ecommerce site/webshop running in less than a week that will keep you going in the cheapest possible way. Host it on AWS or your own provider OR it can be taken care by myself with seperat maintenance charges.
User can place the order, make online payment and you get the notification by email for any orders/customer details. Chat with customer and to provide him details needed.