Though any reasonable group in party finder will see that it's logical to allow crafted gear in substitute for higher i level gear, the problem compounds when, if in this instance, final coil hits the duty finder and has an ilevel requirement along with it.
After spending weeks to months clearing turn 9, I couldn't even enter the duty finder version, with echo no less, due to insufficient ilevel.

Of course you can swap gear as a work around, but that seems entirely unnecessary.