Hi,
May I know which content management system is being used for your current website?
I along with my team are comfortable to build this platform in WP but I must know what are the plug-ins to be incorporated? Do we need to build custom plug-ins?
I can suggest Hubspot plug-in or API for complete digital marketing aspect.
Rest, we must discuss about the complete scope, payment, milestones and after development support activities along with maintenance.
Regards,
Mit-