Unity Shader (Combining Textures)

I am looking for a Unity Shader expert to help with combining textures for a character's limb using texture masking. The desired outcome is to achieve smooth blending of the textures.

Skills and Experience:
- Proficiency in Unity Shader programming
- Experience in texture masking and blending
- Familiarity with creating custom shaders in Unity

Specifics:
- The client has specific textures that need to be combined, so the freelancer should be able to work with provided textures.
- No additional support will be needed post-project.
- The freelancer should be able to deliver a final product that requires no further maintenance or troubleshooting.