Add animation to a product explainer built with after effects

We're looking for someone that can add some final animation to after effects. This is for two scenes and involves moving numbers and letters in continuous movement between graphics. Its probably a piece of cake for an AE pro but we're struggling with it here! We're looking for a very fast turnaround on this. We'll provide the AE (compositions) source for the two scenes and will require the source files back when updated. The letters and numbers that we need to animate will be included in the AE file. Please provide examples of AE work, ideally where vector graphics have been used!