What my guy did was use a length of fairly wide metal and curved it for the Taco cover to sit on, thencut material away to leave 2 slivers of metal sticking off to be bent over and used as the brackets that bolt to the engine.
To get an idea of what I'm talking about, visualize using one of the small chrome Azusa clutch guards and bolting the Taco cover over it...thought about doing that before, but never laid the parts together.