Cheri,
You might want to check out a hincapie jersey. I just bought a new sleeveless one on ebay for - $18! It was much longer in the torso than all my other jerseys. It has more of a gripper on the bottom than elastic. I'm not a fan of elastic on the bottom either but it doesn't bother me, and I'm pear shaped so they slide up with elastic. Hope that helps.