Hey Chris! I believe you might find some great ideas here. They have been tried on multiple bikes and proven to work! Enjoy the read!! :{)
Index to the making of the Last Vetter Fairing
On a short note. You can always streamline the outside of a box that you already have or build one yourself and streamline the outside of it. There are some items that are not costly, that are easy to work with and easy to remove when you are done. Even Coroplast might work for you... (rapturee) :{)