We have set up a dummy bank called Visa Bank Payable and would like to process the visa payment details through AP. Would like to make it as simple as possible.
1.Process the individual accounts in a Manual cheque batch with the Visa Bank gl account as the Credit offset and the debits to the expense.
2. Process the actual payment to Royal bank visa as a physical manual cheque and then a manual cheque batch in the regular bank process for manual cheques and use the Visa Bank Gl as the expense Gl code. The two processes will then clear the Visa Bank Payable.
Do we still need to do an invoice batch, or can we just do step one and two above?

Perhaps this document will help

You can do just the two steps you suggest, using manual check entry with "cash invoice" transactions, instead of entering invoices then paying them with system checks.

You do not need to print anything for the "checks" paying vendors paid by credit card.