ArchiCAD Concept & Working Drawings

I need an ArchiCAD expert to make architectural changes for a project.

Requirements:
- Modify existing ArchiCAD file
- Create concept drawings
- Develop working drawings

Exterior modifications focus on:
- Roof modifications: Change roof shape/pitch

Ideal Skills & Experience:
- Proficiency in ArchiCAD (must have own subscription)
- Strong architectural design background
- Experience with concept and working drawings
- Knowledge of roof modification techniques

Whats required,
Reduce the width of the living are but make it longer to fit the dining table between the kitchen and lounge , add sliding doors to back wall , remove formal entry, remove media room and reduce the garage size
house plan will be provided as an archicad file but will need PDF files for presentation to client