Welcome! In case you are unaware, you will not be able to drive a CHP car in California if it is fully restored as a B&W. The laws there prohibit that. You could however have an SSP in a solid color, or with just the roof painted white, like this one -
http://www.specialservicemustang.net...ead.php?t=4418
SSPs pop up for sale somewhat frequently, so be patient for the one that fits your needs the best...