Implement and Customize Zoho Desk and Zoho Assist.

I have a Saas application. I am looking for someone to implement Zoho Desk and Zoho Assist.
For Zoho Desk, I need the following features:
- Customize the theme to be similar to my website.
- Knowledge base
- I have a user manual that I want to include on Zoho Desk.
- Help center and ticketing
- Email ticketing
- Must implement multilanguage (English and Spanish)
- Define users
- Integrate with Zoho Assist so my users can do remote desktop help.
- And any required Desk feature