BCS infopath POC

Need a proof of concept to be created 1) tools to be used -visual studio 2010/2012 -sharepoint designer 2010 -sharepoint 2010 2) Business requirement -populate data on Infopath form -checkbox options visible based on business logic -data coming from SQL and writing back to SQL 3)POC -create sample data in SQL -use BCS to bring data into sharepoint as external list -Populate data on infopath form. Use business logic to display data and options -write the selected options and entered data back to sql. I can provide further details as and when required deliverables 1) complete code with above mentioned functionality and description