I would recommend taking some time and sitting down and determine how you want to use your truck and what you expect out of your truck. Then you can look at each component and see how it fits into your plan. Once you have your wish list of components look and see how each component will function with other components. And once you sort these things out start putting pricing to the components. Once you have the numbers in front of you it may be that you have to start over with some things based on costs....
