Odoo customization

We are a company dedicated to real estate commercialization. We are installing a new ERP system in our business process based on ODOO. For this we need to make a series of customizations to adapt the service to our needs. Therefore we are looking for professionals to carry out the following tasks: INVENTORY - Possibility of importing existing data tables (excel) with homes and sales status. - Automate the import of data in the future by this means*. - Historical registration of changes in specific fields (mainly price). - Variants within products (e.g.: with shower and without shower, finishes a-b-c) and corresponding prices. - Return of inventory/stock data in JSON upon a URL call. CRM - Client-home relationship to know in which potential clients are interested. - Shared calendar among all agents. - Personalized reports: they can be visits reports, new leads, sales, etc... - Customized sales funnel. - Automated lead creation from different "sources": forms, facebook ads, google ads, URLs... - Duplicate lead detection. - Import and categorization of existing leads from other platforms. EMAIL - Creation of personalized emails with dynamic fields (text and images): it has to respond to Request requests. The dynamic fields have to be passed by URL parameters (if there are more viable alternatives we are open to explore them). PROJECT - Import workflows and tasks from other tools (Wrike in particular). PLANNING - Shared calendar between agents to know the hours of visits in each of the housing units.