8.25 Suregrip rear end for 73 Valiant

I'm looking for a 8.25 Sure grip rear that will drop into my 73 Valiant, need the rear before I start work on my motor, no point in building a car with a 7.25 and I do not want to have to use a ford rear..... Im located in Indio CA, have cash burning a hole in my pocket. If someone has one please let me know.

Thanks