Note: I'm not going to knock any of the Parry builds, I just feel like a Det/Crit build might suit different play styles and give players actual options instead of the usual 1:1 list everyone and their mom has.
But anyways if players are going to go for the Det/Crit build like OP we need to move away from the Parry food(popto/fingers) and start looking at the acc food (aka toad legs and catfish) to make up for our gear selections while keeping the vit.
Here's my attempt at a build: http://ffxiv.ariyala.com/O7S3
Also note I am no theorycrafter/min maxer. I came up with this within 10 minutes. Feel free to give suggestions/change anything.
