Odoo Bookkeeping Data Entry Cleanup

I have fallen about four to six months behind on day-to-day bookkeeping in Odoo. All purchase invoices, sales, expenses and bank movements are waiting to be keyed in, and a few small configuration quirks... (Budget: $30 - $250 USD, Jobs: Accounting, Bookkeeping, Data Entry, ERP, Odoo, Python, Xero)