Startup A is considering acquiring Startup B. A has a high growth rate and limited profitability, funded primarily by venture capital. B, on the other hand, is a mature company with steady cash flow but stagnant growth. How should A value B, considering the traditional valuation methods might not fully capture B's strategic benefits for A (like access to a new customer base or technological synergies)?

Furthermore, how can A structure the acquisition to mitigate the risk of B's stagnant growth hindering A's overall momentum?