sharpshot,
The definition of the 'land after' procedure does not preclude its use with backtracking aircraft. As long as the specified criteria are met then then the direction of travel is irrelevant. However, because of this anomaly, some units do have extra procedures published in their Mats PT2 which outlaw its use in such circumstances.
With regard to the LDA, technically you are required to be beyond the 'runway strip' before being considered clear of the active runway. The strip dimensions depend on the length of the runway and wether or not it is an instrument runway.