My Greg Smith has removable ramps and uses 110V. Since I use it 95% for storage it works just fine.
You will need to raise your garage door tracks to the ceiling and install a side mout opener as has been mentioned. See the thread on the Liftmaster, I really the one i had in my previous house and when the ones in my current house need to be replaced that is what I will be using.
These are from my previous house. Currently I have a three car garage with very high ceilings and the lift is installed on the single bay side.
I can take meassurements if you would like.
Bill