I'm building a power lift for a sewing machine. It needs to lift and hold firmly a 35lb sewing machine. It will be cycled only rarely but it will have to hold the load indefinitely. Speed is not an issue, in fact it needs to be rather slow. Would an actuator of the type here at Openbulds be appropriate? I suppose it would need linear bearings as well or perhaps an actuator at each end of the platform. There is one off the shelf unit built specifically for sewing machines that sells for $650.