PROGRESSSSSSSSSSSSSSSS
of course my bad
my very rusty Unit Command Line skills got me so far but no cigar !!
When I copied the EFI folder onto EFI Partition it put it in the /EFI folder i.e. /EFI/EFI
Emptied out original EFI folder moved everything up and unmounted EFI partition
Reboot and so far audio and 1 network card are up and running.
Still have screen corruption - and an error message that repeats every 5 seconds
This computer's local hostname "Michaels iMac 2 " is already in use on this network...."
Doesn't matter how many times I change the WINS machine name it auto writes back a name it doesn't like
But Progress indeed!