I am a web designer and I have my team, We are basically working on three product.
1. Interface Designing.
2. Database Managing.
3. Business card Designing.
I have my own hosting space and domain for the host my website.
This is a graphics site so that I want a creative website.
I just want to create a website for these products, Where the customer can describe their need according to product and pay for that service using PayPal.
In the landing page, I can set offer database or banner to attract customers from the admin side.
I also can create coupons from the admin side for the customers.
I can see the customer's orders from the admin panel and after completing it I can save it in the customer's account so the customer can download their completed file.
For the reference please visit 99designs.com.