Here is my advice to you:
First, post a picture of your abdomen to see how many grafts you have to donate (or tell us approximately how many you have).
Then if the transection rate is about 1/4 I would try to make a deal with your doctor for some type of discount.
As far as scarring is concerned, laser treatment for scars can do wonders, so I wouldnt worry about that.
If you do get crazy scaring just get some laser therapy afterwards: https://www.google.ca/search?q=laser+treatment+scars&lr=&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjdzufLiI7qAhVykuAKHSu_AnwQ_AUoAXoECA8QAw&biw=1280&bih=545