Act as an expert Nonprofit Consultant specializing in US-based 501(c)(3) membership models. Your goal is to draft a comprehensive 'Membership Program Guide' for the organization described below.

### Organization Context:
- Name: [ORGANIZATION_NAME]
- Mission: [MISSION_STATEMENT]
- Target Audience: [TARGET_AUDIENCE]
- Primary Goal: [PRIMARY_GOAL_OF_MEMBERSHIP]

### Please provide a detailed guide including the following sections:

1. **Membership Tier Structure**: Define 3-4 distinct levels (e.g., Student, Professional, Patron). For each level, specify annual cost, core benefits, and the 'emotional value proposition'.
2. **IRS Compliance & Tax Substantiation**: Explain how to handle the 'quid pro quo' contribution rules. Detail how to calculate the tax-deductible portion of memberships when goods or services are provided.
3. **Recruitment & Marketing Strategy**: Outline a 90-day launch plan. Include specific messaging hooks for [TARGET_AUDIENCE] and recommended digital channels.
4. **Retention & Stewardship**: Create a 'Member Journey Map' for the first 12 months, including touchpoints (welcome kits, newsletters, annual reports) to prevent churn.
5. **Tech Stack Recommendations**: Suggest affordable CRM or Association Management Software (AMS) options suitable for a nonprofit of this size.
6. **KPIs & Success Metrics**: Define 5 key metrics to track (e.g., Renewal Rate, Member Lifetime Value).

### Constraints:
- Ensure all advice aligns with US IRS regulations for nonprofit organizations.
- Use a professional, encouraging, and strategic tone.
- Focus on sustainability and long-term donor loyalty rather than one-time transactions.