This is what I achieved:
1) The ability to play SACD through a good DAC without spending a lot of money. I was actually considering spending $700 on a Z-stock Arcam CDS-50, which doesn't even output DSD signals.
2) Actually test the damn I2S HDMI input on my DAC, which is something I never tested before after owning my DAC for over a year.
3) Can now confidently create my own I2S HDMI cable with whatever pin out assignment I have for any new use cases that arises.
4) Have provided valuable information to others who are (1) trying to overcome the lack of industry standards for HDMI pin out assignment (2) who also wants to use this HDMI audio extractor to play SACD.
I already rip my SACDs to DSD files, but unlike others, I don't sell my SACDs, I collect them. But having SACDs and not have the ability to play it back with a decent DAC, doesn't sit well with me.
So do you think it was well worth my money, time and effort? Probably not, but I am not doing this for you.