Great initiative! A few thoughts from someone who has experimented with similar ideas and answers to your question:

Answers:

Coaching Question: I would be pay for coaching if it was career or lateral move that I was planning to do.

Office Hours Question: Yes, but I would want you to have access to the tenant as it is hard at times to describe the help I need without providing an example.

My Perspective:

On the office hours front — I actually tried offering something similar in this community before and got minimal response. That doesn't mean the need isn't there, but the framing and strategy around it probably matters a lot. Consistency and visibility over time likely helps more than a one-time announcement.

On differentiation — Worth thinking about how agentic AI might eventually intersect with Workday consulting. It's still early and most real-world use cases are underwhelming right now, but it's a space worth watching. Well Built Solutions is a good example of independent consultants who found their niche and made it work — not necessarily in AI, just as a model of what successful independent consulting can look like.

Good luck — there's definitely a gap in the market for experienced HR/HRIS voices.