I think you should hire a pro developer to redesign the website. In order for people to fork over their credit card info online, they better trust your company and know you are real. In order to do so, you need a professional looking website, with categories, a shopping cart, phone number and more.
I would suggest making a business plan, laying out realistic costs i.e. construction, inventory, pos, design, etc. You`ll want to hire a real estate commercial broker to find you some spaces to look at. They cost nothing and their commision comes from the landlord, not the tenant, so it`s free.
I agree with Shutter. Cheap prices not only cheapen the image of your company, but it also has the opposite effect and attracts cheap customers. You don`t want to deal with stingy customers.
Keep your prices fair and reasonable. If anything, you can avoid stingy customers that may lead to headaches and lost income for you in the future. Think long term with your business and your pricing. You only have one shot to introduce yourself as a cheap place, fair place or expensive place.