My machine is Cactus Jack's (System 3) - part number for legs is 26684. Do you have anything to suit?

The manual should state the leg size. either 27 1/2 or 31 inch. I have both sizes which are suitable for most games of this era. I recall my Street Fighter had ribbed legs, but the flyer has non ribbed. So they may have changed them over the years. Best thing to do is measure yours and report back !

At a guess I'd say they are 27 1/2 inch.