As far as I am aware, a question consisting of a really big codebase is generally off-topic here, as our answerers are simply not able to put so much effort in it.
I'd like to talk about a special case here though, questions that are posted as a result of a Code Challenge, more specifically this case will be about this submission.
Out of personal experience, I am working on my own implementation for about two weeks already (found here), and it is currently on 3K loc and guessing 40 at about 40 files. I can imagine my final implementation nearing 10K loc and at least 100 files.
What is the process I should use for getting this code reviewed? It being such a large project, it does consist out of several modules.