Do you have a 6-3/4" or an 8". I'm not sure that it matters, but it might. Since the 8" was used in Pinto's, Mustangs, Mavericks/Comet, Falcon and other Ford product I can't help but thing there is a general block that will work.
If not, I'd try a 4X4 shop and see what is available. If you ask by application likely everyone will say they have nothing. If you ask by specs. of the block (height, length width) and U-Bolt diameter, U-spacing and length you will probably be a lot more successful. Typically I just go to the junk yard and find U-bolts that will work. Then I find something suitable for the block. Normally it will require drilling a hole and creating a protrusion. I've used very thick walled rectangular tubing. The locator hole is easy enough to drill and the protrusion is often a bolt with the head turned in a lathe or just filed while spinning in a drill press.
Lastly my '73 wagon is at normal ride height with 175-70-13" tire (typical for the Pinto). While the adapted Turbo Coupe exhaust drops about an inch lower than idea,l I'd think that a 2" drop is going to have you scraping the ground often unless you are running taller tires to compensate.