CPA recommendation/cost to convert cash financials to accruals for SBA deal

Hi SF community, Our client is under LOI for a seasonal construction & service business. We have a SBA lender that has offered a very attractive term sheet but underwriting needs us to convert three years of cash-basis books###-###-#### to accrual for SBA underwriting. The seller does not use Quickbooks and maintains paper records. Tax returns are done on cash basis. Scope is straightforward: • Accural 2022, 2023, 2024, 2025 YTD P&L/BS • CPA letter confirming financials are accurate based on records provided by seller • Quick turnaround (within 1–2 weeks) Looking for referrals to a CPA or experienced bookkeeper who has done this before (SBA or QoE experience a plus). Please DM with: 1. Brief background / credentials 2. Estimated fee and timeline Has anyone done something similar. The seller will reimburse us for this expense but we are trying to get this done fast and affordably. A full QOE has already been done and we just need the CPA can convert the financials for us. Recommendations or cost estimates would be greatly appreciated.