Just got back from the project managers' office having spent the day modelling the new distances and OLS with some fancy 3D software wizardry...
27 LDA will be 1161m (+/- 3m)
09 LDA will be 1199m
27 TOCS will be free of obstacles based on the current TODA of 1319 and 09 environment is significantly improved with the little bit of extra tarmac and removal of the entrance road and farm buildings.