You an use a decision tree like this to show the steps in deciding whether or not to merge companies.
Text in this example:
We are motivated by a desire to advance our mission.
We are motivated by clearly stated desired outcomes, as articulated on the worksheets.
Clarify your motivations further.
Organization is not currently in crisis mode, and is characterized by a mission focus, flexibility, unity of strategic purpose, solid board-staff relations, and a risk-taking and growth-oriented culture.
Analyze your areas of weakness, and be aware of how they may impact your chances of success in a merger negotiations process.
Time is available (or can be freed up) to devote to this effort over the next several months.
Question how important this is to you, and how wise it is to proceed.