A simple invoicing application - Motor Vehicle Service

Hi I would like to to convert a Motor Mechanics Invoicing system. The existing application uses a MS Access database this is to be converted to a .Net application using C# and Microsoft database (preference is for edmx model based approach), all source code is to be supplied. New Forms are required for: 1) Vehicle Service Allow for customising the Business contact details and graphic. Allows selection of a vehicle from the vehicles database (by rego number or customer name) this is then used to complete the customer information on the service form. A sub form is used to select items from a service items (parts and labour) table, items can be filtered by the first letter. A notes field is available at the bottom of the form for free form notes. The service Total is displayed at the bottom of the form. A GST of 10% is added to the total. The amount paid and date of any partial payments are deducted from the total and the amount due is shown at the bottom of the form. The completed invoice is to be printable. A method of viewing and printing past invoices is to be included. The payment method (CASH, EFTPOS, Cheque, etc.) is to be recoded. 2) Vehicles Data Contains Vehicle Service History and links to the Customers Table. 3) Customer Data This contains customer contact data and links the vehicle(s) for that customer. Create a Report for a quarterly summary of total income, collected and owed and the GST amount collected. Note: I require a database program, this is not a website based project. Note: The current access application is hard coded to be in “C:\ MY documents” Thanks