Ask HN: Anyone have a software consulting playbook (negotiation to delivery)?

I received an inbound request for shorter-term, part-time software consulting in a specialized domain. I'm in the SF Bay Area and work full time, they're in a different major tech-hub – and appear to be well funded.

It's been a while since I last consulted, and I was hoping for a playbook to follow to ensure everyone is happy: negotiation through delivery.

My questions range from how to set prices, to how to present findings (scope), to how to manage expectations, and how to ensure satisfaction.

Any insights HN? Thank you!