{
  "modelYear": 2026,
  "income": 40000,
  "first": 2027,
  "convention": "Annual par-purchase approximation; hypothetical, not executable quotes",
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      "years": 20,
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      "years": 20,
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    {
      "years": 30,
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    {
      "years": 30,
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    {
      "years": 30,
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      "cost": 784017.6539787911,
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      "preset": "30y-3"
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  ]
}