Short answer. We don't have a figure at the moment but will have sometime in the near future.
Longer answer. While we have the estimate of £20 million overall for the entire project, so far we have not come up with estimates for the outstanding individual phases. This understandably might seem somewhat counterintuitive, but it mainly comes down to focusing on each phase at a time, and obviously our focus was mostly lately on phase 2.
With phase 2 under way, and with our business development manager now in place, we'll be looking to come up with a budget for phase 3 in the near future. In an ideal world, we would secure enough funding in order to enable us to deliver the remainder of the project in one go as this would be the most cost effective solution; splitting it into seperate phases is likely to end up costing more overall.