What makes a eg6 so special? That you can't mod a aus spec eg to be same if not better? Only thing it has is its rare cause of seats, and gathers gear. Not worth getting genuine eg6 unless its cheap.

Get a eg hatch and put a b18cr in it.
If i had to choose between eg6 and ef9 i'd go ef9 cause its harder to source parts to make a replica ef9 then to make a replica eg6.

Good luck finding a good condition ef9.