saas/pass application builder and workflow manager updated

We are looking for someone to build a website that has the ability to track CRM, buildings, assets, vehicles, all in one application with the ability to build various modules, forms, business objects, and workflow management, reporting, and user portals. The bidder must be able to show past work examples, and how the application will have the ability to charge end users for the use of the modules and free trials. The updated scope includes using open source, not custom objects, to reduce cost.