I'd love to see one for an Esee 4. I spend lots of time in the woods, when I'm not studying
Try Jungletraining.com. ESEE's forum. They have a FST where you could lurk, or I am certain that the members will be able to point you in the direction of somebody who can set you up with something custom.
The idea here was a sheath first, and some knife-centric tools, second.
Too much "survival" stuff, and you end up leaving the whole heavy mess in the truck, so you don't have it when you really need it. It's not always easy to tell when enough is enough, but I'm confident I got this right.
History confirms that conclusion, too: modern "survival sheaths" hold much of the same gear that Paleolithic people carried in their possibles bags.
The ESEE 5 seems about the right knife to center the kit around, so I'm moving on to the rest of it.
The BK 11 seems a good choice for a secondary knife, especially since it is the only factory knife that comes with a bottle opener.
But I would like to hear what others think would be good alternatives.
The Izula and Izula II do come to mind, but I wonder if there are other options.