Here's the problem...
There is no correct answer!
AS far as I can decipher, the laws of each state are open to interpretation as are the ADRs, despite been written in "English" and as such, there are infinite answers to your question, and at the same time no real answer!
Can it be done? YES
What needs to be done? Only your engineer can confirm, and even he needs approval from the governing authorities who'll sign off at the end.
Question really becomes - how deep are your pockets?
...because in the end, you can get it done if you are willing to throw money at it.
This, I have found to be the sad reality that is our hobby in OZ.
...But Glen - Don't despair & Don't let the Bastards get you down.
I say go for it!
PS: Just for the record I'm planing a similar path!
Now, just need to line those pockets with money so I can make it happen!