I have a negotiation call coming up and need to prepare a complete Negotiation Prep Stack. Act as a negotiation strategist.

**Deal context:**
- What we sell: [product/service]
- Deal value: [price we quoted]
- What the prospect is pushing back on: [price, terms, scope — be specific]
- What the prospect has said: [direct quotes about their concerns or demands]

**Our position:**
- Our cost structure: [what this deal costs us to deliver — margin information]
- Our alternatives: [other deals in pipeline, impact of losing this one]
- Internal constraints: [minimum price, maximum discount authority, non-negotiable terms]
- Strategic value beyond revenue: [logo value, reference potential, expansion potential]

**Their position:**
- Their alternatives: [competitors they're evaluating, status quo option, internal build option]
- Their timeline pressure: [do they have a deadline? a budget cycle? a board meeting?]
- Their stated budget: [what they've said about budget, if anything]
- Decision dynamics: [who decides, who influences, who has to approve the terms]

**Build a Negotiation Prep Stack:**

1. **BATNA Analysis** — Our BATNA and their likely BATNA. Who has more leverage and why?
2. **Walk-Away Triggers** — Specific conditions under which this deal isn't worth winning. Define the line.
3. **Concession Hierarchy** — Three tiers of concessions, ordered from lowest cost to highest:
   - Tier 1 (give first): Low cost to us, high perceived value to them
   - Tier 2 (give if needed): Medium cost, traded for a reciprocal commitment
   - Tier 3 (last resort): High cost, only if they commit to [specific trade]
   For each concession: what we give, what it costs us, what we ask for in return.
4. **Value Anchoring Points** — Three statements that reframe price as investment, tied to their specific business outcomes.
5. **Objection Responses** — For each likely pricing objection: the objection, the underlying concern, the response, and a supporting proof point.
6. **Red Lines** — What we absolutely will not concede, and the language to decline gracefully.