I have been looking into CDI's, I would tweak your idea a little as follows...
Resmed has a similar setup, their ASX component is called CDIs and therefore the NASDAQ Share is the Race Leader and the ASX SP follows suit.
So if JL used the same Delaware Company Structure that is proposed... and add ASX CDIs as a trading instrument for the NASDAQ IXHL on the ASX... that would work IMO......a reverse of what is currently the case. It would allow Incannex INC of USA ( a foreign company to trade on the ASX )