With 12 foot sidewalls get a lift that the controls are overhead Mine is on the ground and hard to push the cars over them Also when installing your lift do not center it where you think it should go push it forward you do not want the rear of your car up against the back wall I bought my lift from a guy in Hutto cannot remember his name but hes a racer and does a great job Ill send you his info when I go look at my lift Also if you need a electrician consider me Just sayin