Connecting 2 story to 1.5 story attached garage

[NorthSoundHB]

Hello smarter minds, new user here on Premiere X15.

 

I am attempting to connect a garage with a room over it (1.5 story), to main 2 story home. When I keep the connecting part of the home at 8' ceiling heights, and drop the ceiling heights for the room over the garage, the roof planes don't line up and I'm having trouble connecting them appropriately using manual methods. I have attached screen shots of the desired effect, what I have now as well as the plan file. 

 

Any help would be appreciated!.  

 

 

Footprint2.plan