Senior SharePoint DMS Developer Needed

I am in need of a seasoned developer specializing in Document Management System (DMS).

Can review high-level specification brief and give me your best guess time-effort + costs:

Objective: Structure a timeline comparison for a cloud-based DMS:

Phase 1: Planning & Assessment
1. Define business requirements and success metrics
2. Map user access requirements and workflows
3. Document compliance needs
4. Create implementation roadmap

Phase 2: Solution Configuration
1. Initial platform setup
2. Configure user roles and permissions
3. Setup basic workflows
4. Initial AI widget integration

Phase 3: Security & Integration
1. Configure SSO and authentication
2. Set up data encryption protocols
3. Establish API connections
4. Test security protocols

Phase 4: Testing
1. UAT
2. Performance testing
3. Security validation
4. Integration testing

Phase 5: Implementation
1. Data migration
2. User training programs
3. Phased rollout approach
4. Documentation completion

Phase 6: Post-Implementation
1. System optimization
2. User adoption monitoring
3. Performance tuning
4. Continuous improvement implementation