Well, the hose fittings and bracket attachments are completely different, I don't see how this will work. It'll be cheaper in the long run to just go to NAPA or whatever and buy one.
THis is any easy and common mod to make if you are using the stock 5.0 serpintine belt system. You will have to cut your early style pressure line, so if you don't want to do that, you will have to buy another one and keep your original, and you will need a late model pressure line-87-93 mustang, cut both where you want it and have you local hydralic shop crimp a splice in. You can make the late model line long and hide the splice underneth if you want.