They make and FLC type vest and an ELCS type rig. The kind with the Chest Pieces, they just call it an LBV, but it has molle instead of built in pouches.
But you would still need something to hold your pants up. I had no problems running a riggers belt, repelling harness, and a duty belt for my first line gear.
Paraclete HPC with cummerbund
Pouchs from left to right
1x Spec Ops IFAK
3x SDS M4 mag pouches
1x SDS MBITR
1x SDS M4 mag
Trama shears and sharpies on the bib
TT duty belt
TAG dump pouch
BHI 100 rd SAW pouch
I have 2x Eagle M9 with kydex on order and im missing my 6004
I cant decide if i want to move the IFAK to my first line and add a canteen in that spot or run a hydro pouch with bladder...