ebIISIXA I fitted a set of AU thermos to my EB V8 a few months ago. Yes the EL fans will fit straight in the mounting places going by its size. By memory they are 700mm wide, like the standard shroud and radiator on the EB. The AU is about 50 mm narrower, but they still fit after drilling a couple of holes in the shroud and trimming the top plastic off (that was only for the air intake).
I actually wired them up like fitting a set of aftermarket thermos, using a Davies Craig adjustable thermostat, they have fitting instructions for fans with them (cost about $45 at Repco) and using a 60amp fusible link. They are wired up off the accessories. The fans themselves should have their own wiring for operating, which I used as well. I have not had a problem with them and they work like a charm.
They are a lot better then the clutch fan giving you a lot more room in the front of the engine bay. I was after a set of EL ones but got these AU ones, which were brand new and really cheap of a mate's mate who works at a Ford dealership. Not only do they still keep the car cool but the engine appears to operate a lot smoother, even with the air on. Good luck.