Reviewers can smell a rat three thousand miles away. Items such as rent, renovation, information system development, and consultants always raise the ire of most reviewers. If you have these categories, make sure they are discussed in the narrative somewhere and make sure the cost is reasonable. Write as if the money is coming out of your bank account. This is where many grants loose points.
Accountability is a real and major issue with governments and foundations.
Select a skilled evaluator to be responsible for the evaluation section. Enter into a written memorandum of agreement whereby the evaluator writes the evaluation section of the grant in exchange for administering the evaluation component if the grant is funded. Also, it is wise for you to always have access to an evaluator. I encourage all agencies to have an evaluator on standby and if possible on retainer. Grants-Tech USA has highly skilled and competent evaluators on standby for major grants.