I think that might be my old, original LW.
Not sure what an "Mk1" is but that is an original Nirvana UL (the LW moniker came later). The stitched logo on the keel gives it away. And if it is my old one I always did my own brass rod insert as part of the tail weight.
As for settings, I used to have them memorized but no more. I can do some measurements later in the week. But as a hint, there were never stoppers on the LW or WW. You have to force the APA connectors onto the LE rods. And it ain't easy. Expect it to take a while. HINT: "Nose grease!"