Have you tried a "men's " jersey? I have been cursed/blessed with the long torso/ short legs syndrome. I have to wear men's shirts no matter what it's function, otherwise it rides high. Too bad I can't take credit for the mid-drift fashion......It was just a fact of life for me.
Nashbar can be a good place to try, especially for closeouts. You may want to research a product first though to determine WHY it is a closeout. Example - poor product or new colors.