A good template will provided a step_by_step approach with explanations as to why each step is proposed. The strength of the marketing plan derives from the integration of each step. So if you leave out a step, you may undermine your own plan.
The first method is rather time_consuming. In this case, you can look up community forums, such as those in the IT (Information Technology) field and look up free template building tools. Then you'd have to do it yourself. The good thing about this is that you can use it again and you'll be familiar with the issues you would most likely encounter during training.