In reply to Jackob:
If you can get the miles in, you'll have a great time on LIAD. I'm pretty sure some people walk most of it, in fact, if I look at my Strava, I think I walked most of it
Obviously keep up the running, but don't underestimate the power of hiking. Get out for some long days with a pack and try to grab plenty of ascent. 3 of the 4 thousand metres you will climb are done in the first half of the race.
I finished in 18+ hours so I had to pull in a lot of reserves in the early hours of the morning when I'd been on my feet (wet feet at that) for 15 hours or so.
Enter it, enjoy training for it, and enjoy completing it. It's a great event. Oh, and the aid stations are epic. Hot food, sandwiches, tea/coffee.