I'm very good with frameworks - I've got several years' experience with Drupal - but this project I want coded by hand, because I want to be absolutely certain

I'm very good with frameworks - I've got several years' experience with Drupal - but this project I want coded by hand, because I want to be absolutely certain of what's going on on every page of the project. The UI elements are pretty much set. This is an idea that's been a long time coming, and we've got ourselves almost entirely planned out.