Answer:
Simon should provide the summary of the long proposal in the main body of the proposal and include the details as appendices.
Step-by-step explanation:
This situation is more true for Executives that do not have enough time to consider a report from start to finish.
Executive summary has been designed to tackle this issue especially by ensuring only key issues are cited in the main body of the report.
A way to go about this is by ensuring that the summarized report is written in Word-like document with the details such as figures,amounts,charts,dashboards are prepared on Excel spreadsheet such that getting detailed analysis on an area would just be a click away.
Also, the fact an area of interest to one person is not necessarily the same for another as far as the proposal or report is concerned