Best Free WHMCS Wordpress Auto Provisioning module for single site installs

Best Free WHMCS WordPress Auto Provisioning module for single site installs.

I am looking at offering two levels of support one where they can use sub-domains off my multi site and then do domain mapping but also for larger sites have a stand alone WordPress install on cPanel they can access right after they sign up without having to run the creation scripts and what not in softolutious. I see some paid version but don't know enough about the code to see what free one is good to use.