Modern Business Document Templates with Custom Ribbons

I'm looking for an experienced Microsoft Word specialist to create modern, professional templates for the following business documents:

Proposal
Purchase Order (PO)
Invoice
Offer Letter
Employment Contract

Additionally, I need custom ribbons programmed with the following functionalities:

Format Styles
Quick Access to Templates
Insert Predefined Text Blocks

Ideal skills and experience:
- Proficiency in Microsoft Word
- Experience creating custom ribbons
- Strong design skills for modern document aesthetics
- Attention to detail and reliability

Please include samples of previous work in your bids.