That website doesn't do anything yet. It looks good as a homepage, but doesn't work. Is that the site you created or someone else's?
You can try if yo are ambitious enough. Register a domain and pay to get it on the search engines. Design a good web page and always maintain excellent customer service. Don't go back on your words and deliver fast. There's a lot of competition out there so reputation counts. You need to invest some money into it and find a wholesale dealer you can get parts from. A business license would help in doing that. You'll need to setup a billing system, customer database, parts database, shipping method, etc, etc. I feel if I were to do this, I need help from a few people to get it going but unfortunately my friends don't have the same interest as me.