I sense a lot of bitterness from this post. I don't think you have a full context on history of 409a valuations industry.
Considering the fact that 409a valuations pre carta would cost $10k, $2k doesnt sound like a such an unfair deal. You could always go the legacy lawyer companies route and pay way more for a single 409a valuation.
As for onboarding process - you do need a hell of a lot information to conclude said valuation.