Animate progression of cells

We're looking for a reliable After Effects animator to animate a sequence of cells. The cells grow and multiple, and change type as the sequence progresses. We need someone to work with an existing After Effects project, with shape layers and the 'look and feel' already defined. Your role will be to animate these cells to show the progression. The attached document shows a sequence from (a) to (h). The animation should show the cells reproducing as the mound builds from (a) to (c), then continuing to reproduce and move as the mound grows very large in figure (d). Then, in figure (e) the cells should change type as shown in the diagram. The other features of the progression will be discussed after acceptance of the job.