thought i would report in on my electric fan conversion. I wound up buying an inexpensive universal cooling fan from advance auto , don't remember the brand. I mounted it inside the original shroud ,similar to the OP, trimming all the mounting tabs and whatnot out of the shroud , made an adapter ring and attached it with a zillion zip ties. It has worked flawlessly through the hottest summer on record last year , never a hint of overheating and no noticable load on the charging system. Now if I could get those stupid swaybar bushings to shut up