Anybody seen a garage door opener part such as this?
I have two of these http://www.liftmaster.com/consumerweb/pages/productmodeldetail.aspx?modelId=1443 at my house along with follow the roof track, valuted ceiling. really low clearance I also looked at http://www.wayne-dalton.com/idrive_TorqueMaster.asp also see the install video http://64.34.166.240/wayne_dalton/idrive/flash_content/video.html
The idrive does not require safety sensors as long as the door is one of the pinch-resistant models. The force reverse should feel really nice since the forces are mapped along the entire travel in memory with the extra 10-12 lbs or so added to each point during the setup phase. Look for proper wiring in the attic since these need an outlet in a different location than typical.