As one who employs much of the gear that you picture for use with "real-steel" I can't begin to convey how impressed I am with the collaboration on this kilt!

RKilts should add this copyrighted design to his line and charge a fortune for it.
I would suggest that a hole for the upper strap for the thigh rig be made. A heavier chunk of steel, brass and lead would need the stability while running.



Simply OUTSTANDING!

(edited to add
Did you ever think of getting one of the small trauma plates for soft body armor to cover the "under sporran" area?