Just my $.02, but I think the previous posters are right on the money about the learning curve required and the challenges this type of fast-track training presents.

It will be imperative that you design a syllabus that allows your student to grasp the underlying fundamentals without having to struggle with more complex technology.

I think the only practical way to do this is to get instrument proficient and checkride ready in the 150 first. Then you can master the commercial maneuvers in the complex aircraft and transition the instrument skills. Trying to learn instrument techniques from scratch and commercial maneuvers at once will likely make it much more difficult to focus.

I think the amount of flight time that you are suggesting per day is probably inappropriate for the average student. After an hour and a half to two hours of new content, a normal student's ability to learn is exhausted; flying beyond a student's saturation point could hinder and undermine the useful learning from the entire lesson.

Just my opinion; take it for what it's worth...I'm not the most experienced instructor in the world.