How long after rib graft rhinoplasty can I resume my workout schedule, including heavy weight lifting, running and crunches?

I am considering a nasal bridge augmentation and tip refining rhinoplasty. However, I am very apprehensive about the recovery time needed after rib cartilage grafting and the pain involved thereafter. I have PCOD, Asthma and rapid weight gain issues. So, I cannot afford to be not working out for a longer duration. It severely affects my physical and mental wellbeing. Any suggestions regarding alternative natural cartilage donor sources? I just want to avoid the rib/abs region.