Oh dear, somebody isn't reading.
You cannot get an FAA FROZEN ATPL!
It is possible to get JAA "Frozen" ATPL's.
The FAA doesn't let you take the ATPL test until you have the hours for it.
What I believe you really want is an FAA CPL+IR, JAA ATPL+CPL+IR+CRM. This is what most people do who want to set themselves apart.