Accounting System Rewrite -- 2

We are looking for a full rewrite of an existing accounting system that was written in VB6. The software includes, but is not limited to: -Various modules to manage data, such as sales, customers, purchases, banking, and accounting -Enter quotes, sales orders, invoices, leases -Manage customers, receivables, payments -Create purchase orders, manage inventory, accounts payable -Enter checks, create deposits, recurring payments -Chart of accounts, general ledger -Create new companies & projects -Reporting for data related to every module Requirements: -Rewritten to be in C# with WinForms. -SQL Server database (ported from MS Access) -SSRS reports, rewritten from the existing reports -Add robust user management with permissions by rank -Software installer with user registration keys. Upon accepting a bid, screenshots will be supplied, as well as source code if requested. Please leave your estimate for payment & time frame for delivery with your requested bid, or if you would like more information, please make note of it.