I decided to donate it, but I can change it, so what should I do?

Donor rib - Inflammation, absorption, other people's skin, falling nose tip, less warping, etc. KRW 4.6 million (Inflammation and absorption are the biggest concerns)
 
Autologous rib - Scar, post-surgery pain, less absorption, warping, etc. KRW 4.3 million (autologous cost for the first time) They say it is not recommended to use it) (I want to quit on the first move)
 
I want to quit on the first move, but what would you choose?
I'm looking for it, but at first I heard that it's not good to use self-assembly, so I don't know what to choose.