So, I put the question out to the general community here and peeked in my doll. There is separate stringing for the legs so I wouldn't have to completely restring her. Her leg stringing ends at pegs up in her hips. For the heel legs, I would need some shorter elastic bands since they would connect from the hips to the knees instead of from the hips to the foot. This is doable. I am going to order the heel legs.