Just saw this 500lb hydraulic lift cart in upcoming Princess Auto flyer. Could be a good pinball lifter with some slight modification to the handle with the release lever.
http://www.princessauto.com/en/detail/500-lb-hydraulic-lift-cart/A-p8662223e
http://www.princessauto.com/en/detail/500-lb-hydraulic-lift-cart/A-p8662223e