WHMCS: Add hosting package to purchased/transferred domain if one not present.

This is what needs to happen: Customer purchases or transfers domain(s) in. If customer did not purchase a hosting package, add a "Placeholder account" hosting package to the process. Software: WHM 54 and WHMCS 6.2.2 Site is partially integrated, but using the WHMCS cart. When a customer purchases or transfers in a domain, this is what needs to happen: Domain(s) bought/transferred in. Customer checks out/pays/finishes. System checks to see if a hosting package was added to that specific doman(s). If a hosting package is associated with every domain, proceed as normal. If any domain is missing a hosting package, the add a hosting package "Free Placeholder Account" to the domain. This process should be done by modifying the order, after customer "closes" it and before it's processed by the system, so that the modified order contains both the domain(s) being registered/transferred and the hosting plan(s). I only plan on spending $125.00 USD and project must be started soon. Please check out [login to view URL] before bidding. Implementation must be secure and should apply the KISS method.