I think your roster is bang on. There's even enough money for Beaulieu in place of Niku.
As for maximizing LTIR, I've read it's a different process when the early LTIR options is used.
Technically the Jets will now be over the cap when rosters are handed in so regardless of what amount the Jets are over, be it $1 or $5,291,667, the Jets are effectively at $81,500,000 for the season.
Some clarification from someone would be great on this. I'd read something along these lines a few months back and there were ramifications cited for going about things in this manner.
Anyone?