Admin & Account mgt support

I am selling a video app to car dealers. The tasks will be account creation, helpdesk support, giving online trainings via video calls to car dealers in English about how to record videos - how the app works, making contracts, resolve questions, issues, lead generation, sales demos, managing the CRM. If that would be interesting for you, could you share your availability per week - month and your required salary per month in USD for 40 hrs per week?