Flesh Crafting

Skins Smiths

Alteration of flesh and limb while looked down upon is very common at least cosmetically. The quality of the craftsmanship can vary.

Providing fresh flesh can dramatically reduce the costs of materials. The best Flesh Crafters are often under exclusive contract to the Assassins' Guilds.

I leave it to the DM's discretion to decide the appropriate Permanent Scarring & Cost.

A good guide would be.

Alteration 

Nose, eyes, ears: Cost 150sp-350sp

Muscle enhancement: 350sp-550sp

Complete Facial alteration/grafting: 550sp-800sp

Complete Limb Alteration: 800-1000sp

Limb Grafting: 1000sp+

% of Body Scarred     Performance time   *Unhealable hp   Cost

             10                                 1 hour                     1                150sp

             25                                 3 hours                   1                200sp

             35                                 4 hours                   2                350sp

             50                                 6 hours                   2                400sp

             60                                 7 hours                   3                550sp

             75                                 9 hours                   4                650sp

             85                               10 hours                   4                800sp

           100                               12 hours                   5               1000sp

*Unhealable HP represents a PERMANENT HP loss.

Save vs. Poison.
Fail and Infection settles into the skin and muscle tissue,

eventually working it's way into the Organs. 

Antibiotics DON'T come cheap and could be fodder for a quest.