Garp, I'm old enough but geographically unqualified to answer.
Phil, I've used chicken frames in an "old school" base gravy before, following information from CT. From memory it produced good curry.
I'm about to watch the video.
This looks good to me. The main thing is the chicken stock. Vegetarians / vegans won't want it but I'm neither. The spiced oil thing is interesting. I'll be looking forward to his follow up recipes.