The introduction ought to be brisk and to the point and not feel as though it is trudging laboriously through each of these elements. Background on the problem, opportunity, or situation. It's true that the audience of the proposal may know the problem very well, in which case this section might not be needed. Writing the background section still might be useful, however, in demonstrating your particular view of the problem. Benefits and feasibility of the proposed project.
Most proposals discuss the advantages or benefits of doing the proposed project.
This acts as an argument in favor of approving the project. Also, some proposals discuss the likelihood of the project's success. Most proposals must describe the finished product of the proposed project. In the scenario you define, there may be other work such as conducting training seminars or providing an ongoing service. Add that too.