DWG Conversion and Layout Redesign

I need an experienced designer to convert PDFs to DWG and redesign an internal layout for improved functionality, focusing on wheelchair accessibility.

Key requirements:
- Convert existing PDFs to DWG
- Redesign internal layout, especially toilets and ablution areas
- Provide 3 layout options to choose from
- Focus on improving accessibility, particularly wheelchair access
- Create a 3D walk-through of the selected design

Ideal skills and experience:
- Proficiency in AutoCAD or similar software
- Strong background in architectural design and layout planning
- Experience with accessibility standards and regulations
- Ability to create realistic 3D renderings

Please include relevant portfolio pieces in your bids.