Help on new 2720SL

Looks like the prodigy brake controller is the way I'll go.I have another question about parking the TM in my garage. The way I read it the 2720SL, with a 2" lifter and low profile AC will measure less than 81" in height. The lowest point of my garage opened is 93". I have a very slight incline on my driveway approach, ( less than 5 degees). I think I should be OK. Anybody have an experience with this? I am really excited about this andand I can't thank you folks enough. Everybody has been so friendly and helpful. I intend to join this website when my 30 days are up and look forward to becoming a member of this community. Thanks....Joe