My customer offers the services and charge monthly for an Year(12Times), and maintain sales contract

Summary:

The requirement is, we need to create the sales contract/agreement for the prices and, create the sales order using that Agreement/Contract, only one time we create the sales order and the Recurring Invoices should happen in AR automatically every month, based on the billing frequency in the sales order. Is this possible in cloud? Or it's better too go with the service contracts? I created service contracts using Enterprise class and that is not visible in the sales orders, when I use class an Agreement while creating the contract type, the contract start and end dates are not defaulting from