Hi, I understand your project requirement. I've ERP portal consists of CRM, Bidding, Project management,and another project consists of Meetings, Tasks, Invoice(Goods& Services - Indian market only).and another project with e-publishing module(like Tender site. user can register and access the documents for a tender.)
I can integrate or re-develop project with your customization requirements. If you like, you can discuss about milestone/budget/requirements in depth with me in private message. I CAN SHOW DEMO OF ALL 3 Projects.