has anyone got the doors working on air? i bought a set of robart retracts on air and would like to work the main gear doors on air as well but having a hell of a time trying to find air cylinders small enoughto fit in the wheel well . i think i would need a cylinder 2 1/2 inches in hieght pivot to pvot with 3/4 inch stroke tryed robart airpower and a couple other no luck can anybody help or have any other way to mount a little bigger air cylinder regards