Go and find a management consultancy that publishes its prices.
Take your time. We'll wait.
Ajility publishes the complete ladder. The free Operating Scan. The Operating Diagnostic from $3,600 plus GST. The Full Diagnostic and 90-Day Roadmap from $6,900 plus GST for one entity. Every install and every retainer on the packages page, no "book a call to find out".
Why: because pricing is literally the specialisation. A pricing consultant who hides his prices is telling you something.
If your business runs on quotes and you'd like your own pricing to be this clear to your customers, that's exactly the work.