Order template for product link orders incl. domain check?

[cluster]

Is there an order template which can do a domain check when using a direct link to a hosting product?
There should also be an option to select a dominan transfer or use an own domain.
That would be pretty important as most customers choose the hosting package first.

[cluster]

or could this simply added to a custom (default) order template?

e.g.

if domain == required

> show domain check incl. transfer & own domain option