IronV8, I am not well versed in ALL of the LAT options and thier variations.
I do have a set of headers that came off my Tiger, A 1965 MK1a with a 1965 K-code 289, that was first put together back in the late 70's early 80's. The headers are not perfect but they are certainly usable as-is or great for refurbishment. I took them off to install a set of Jet-Hot coated headers when I purchased the car in 2002. Send me a messge, or give me contact info in this thread, and we can discuss the situation as I would be willing to sell them. I do not get to this site often so be patient with my reply. Thanks and have a great day.