This is extremely smart. I hope you succeed, especially considering I was initially filled with cynicism for the first five seconds until
I read your marketing type. Others might disagree, but it won me over because it reminded me of similar products in other markets.
A good analogy in the audit space would be a pre-assessment. You pay for a pre-assessment to get an informal walk through the process on a much smaller timeframe to get a better understanding of your gaps. Examples could be SOC1 or SOC2 pre-assessments, where failing the pre-assessment is a no-impact matter. Failing an actual assessment which produces results could mean having an exception-filled report to give to clients or potentially even deciding that disclosing such a report poses more downside in converting sales, meaning you just wasted a six figure assessment by burying the report.
Lobby conversations/interviews could result in referrals, which means these effectively act as no-risk interviews with people in the know with hiring processes at the desired firms.
This looks like a potentially solid initial go at a practice market, where the risk of utterly bombing an interview and potentially getting turned down for future opportunities at a desired firm might actually run high.
There's a market for practice runs in anything where the final result will be materially impactful in the long term, especially where final results pose potential significant downside compared to the base state.