There are some alternatives, but as they say, "it depends". That's why suggested to ping your NetApp account team so that you can give them a high level description of what you'd like to do.
We have partners who sell compute stack for Azure Stack HCI and we have ways to integrate, but not out of box, so what can be done depends on requirements and that's why I don't expect there's a way to just generate a quote based on a packaged solution.