I wired a IIA this year using a prefab wiring loom to the original spec just with a couple of modifications for an alternator and pre-engaged starter. If I was making one I would include a few more fuses than the standard loom.
Was that military spec though? The military Land Rovers have a totally different loom to accomodate the six way lighting switch, convoy and blackout lighting. Also the loom for the towing socket is completely different to civi.
You going for military spec wiring Madkayaker or a civi spec loom?