odoo community (CRM, accounting and invoices) installation + customisation +...

Hey there, I don't have much of technical knowledge, but I assume you may help me to pick up and understand what I would really need to reach an MVP for my project. I would like to create a platform where my customer could register and manage their expenses and invoices (odoo CRM, invoice, and accounting) but fully branded with my company colors, logo, and fonts. Every customer should be able to create their own account in my platform to manage invoices (create their own customer database, with their product list, issue invoices and all other free odoo invoice services ) on one hand. On the other hand I also need customers to be able to manage their expenses, attache receipt to invoices received to transactions (on their bank account to be connected via API or csv bank statements but not necessarily part of the current project), and to a cost center for accounting purposes. Finally, I want customer to have a dashboard for their performances to give them a proper financial outlook of the money to come in and out. I am planning on having this in the cloud using Odoo community open source as it seems that it is the most advance and ready to use tool that can suit my need and easy to upgrade with additional own service that would make my service unique. For a better understanding of what I would like the product to be like please see [login to view URL] I will only work with someone who can fulfill the entire request, no partial service. Could you please the right service package or the customization I need to order from you and to which price? Thanks in advance.