It's quite funny to go to TitanX as ilv 73blm, and out-dps ilv80+ ppl, cause 70% of ppl are just plain rubbish, and 99% fail for some reason, trivial or not.
even if you set ilv restrict to 85+, they will still mess up most of the time. (saw someone make 85pt, and request ppl dont suck, and i been in pt with him before...and he did less damage (blm) than tanks)
a live ilv75 is better than a dead ilv85.
I spent 100hrs on TitanX last week, and won once. Aside from that one win, all the other ilv80+ parties wipe, mostly at/before heart phase.
If you can't do it at ilv 75, you probably can't do it at ilv 85 either.
Also, even with wep/most armor parts being 80-90, my ilv on mnk is still sub80, cause DL-accessories; and that's not going to affect if i can beat Titan or not.
As long as you got ilv 80-90 wep, 3700hp, you're good to go.