It's a wrap!
Took far longer than expected and was quite a PITA but many hours later it's done.
My one advice is if you ever plan on doing this is do it with engine out or have the header off if possible.
All my runners are individual runners and even though I started to try to take them off I remembered it would actually be more work in the end for me to proceed with taking them off.
Happy in the end. A LOT better than the old job that was falling apart and had had foil as I guess part of design.