Remove hours whose legality and availability are unestablished, then revise staffing, payroll, and cash projections accordingly. Attach wage research, quotes, and commitments supporting the revised plan. First sales are not mandatory in every prelaunch case, but the commitments relied on must be credible.
Make each assumption traceable to a document
For every projected figure, note the source: a written quote, a signed lease, an equipment order, a comparable wage survey, or a stated estimate. Equipment does not have to be in production use before filing for a commitment to count, though the commitment itself should be documented. Keep the revised version dated so later changes are visible, and expect requests for additional support rather than a fixed list.
Rebuild in this order: staffing table first, then payroll and payroll taxes, then the cash requirement, then the funding schedule, because each later figure is derived from the first. Changing a wage assumption without re-running the cash requirement leaves an internally inconsistent plan that a careful reader will spot. Hypothetical example: an instructions-for-use translation and typesetting shop replaces unpaid family proofreading with a contracted vendor; the vendor quote becomes an exhibit, the monthly cost enters the projections, and the opening cash requirement rises accordingly.
Date the revised version and keep the earlier one, so the change can be explained rather than discovered. Keep the wage research with the plan rather than in a separate folder, since a figure and its source are read together and a projection whose source sits elsewhere reads as an assertion.