Hi there,
Greetings.. I have gone through your requirement. I am keen to work on this project as well I am having extensive knowledge of Windows Application development.
About CRM, there are multiple features, are as below:
1) Contact management
2) Opportunities
3) Quotations
4) Documents management
5) Invoices
6) User/Employee management
Development:
I will develop application in Asp.Net MVC / C# and it will be Responsive in design so it can fit in any type of gadget i.e. Desktop/mobile/Tab etc. AngularJS too can be added here.
For Windows application, I will develop it in WPF/C#. WPF provides rich look to application.
Database: MSSQL Server or MySQL , with .Net if we go with MSSQL would be great.
Please list your points which you like to have in CRM. It would be great if we freeze the requirements and Milestones.
Looking forward to your reply.
Many thanks & Regards
Sikander