This isn't a big demand to make on someone. Ask them to read your proposal for 10 minutes, and say what they think. Remember, most committee members will give it less time than that. Make sure that the first page acts as a stand-alone summary of the entire proposal. So don't fill it up with boilerplate about the technical background.
Most funding agencies apply similar criteria to the evaluation of proposals.
We discuss these below. It is important to address these criteria directly in your case for support. A proposal which fails to meet them will be rejected regardless of the quality of its source. Otherwise, there is a danger of discriminating unfairly in favour of well-known applicants. Here are the major criteria against which your proposal will be judged.