ISO 9001 Certification Roadmap Assistance

I run a traffic management company and I’m at the very first step of formalising our Quality Management System. My top priority right now is ISO 9001, though I do want to keep ISO 14001 and ISO 45001 in view so anything you create can grow into an integrated system later on... (Budget: $15 - $25 USD, Jobs: Change Management, Construction Management, Risk Management)