Heidts is the only one I'll ever use. They're materials are top notch and are easy to install.
Eliminating the strut rods will over time weaken the lower "A" arm attachment point. The crossmember needs to be fully boxed from one side of the frame to the other and extra gusseting added to the eliminator or cracks and failure of the lower "A" arm attachment will result. Do a search here and there are a couple LONG threads about this happening. There is nothing wrong with the Mustang II IFS as Ford designed it. They spent millions to come up with a reliable design. Its just when entrepreneurs decided to mess with a proven design (like eliminating the strut rods) that things start failing and give the design a bad name.
Good luck on your build.