I propose a Java6ee platform to launch into a marketing concept that is state-of-the-art. One that will take you into the 21st Century in style with a touchy feely concept of the kind only the Java "Nimble" tools can provide. Not to make any assumptions but things like security and shopping carts are built-in to every design along with many other software plug-ins such as MySQL that would not increase the pricing AND are available to you when you want them. But just to be clear there are other security measures and maintenance that must be taken into consideration on a monthly basis.
Marketing your product will be an adventure with Java6ee. Because the key to Internet success is traffic. Java offers animation and interactive software/tools that are the best anywhere on the net. Your customers will enjoy the shopping environment with Java6ee.
My bid is 10 days; much of that is dependent on how quickly we can get product and marketing info. Other info would be required as to your server, operating system, what you are doing now, integration of current data etc...Possibly a sample Internet site, your thoughts, ideas, perferences, requirements. I have a blue print for us to run thru.