To help ensure a successful outcome, take the time to evaluate each financial option on the length of time you will be able to use the funds, the costs of using the funds (such as interest payments), and also the amount of company control you might lose due to ownership positions others will then have.
The two-new-runway option would see a new northern full-length runway 2, 900 metres from the existing one, on which planes would fly only to and from the west to avoid overflying the town of Horley.