elliottp, replacing a connector is fairly easy. The big trick is getting the pins out of the old connector. I find using a jeweler's screw driver (flat blade), you can slide it along the pin and you can release the locking tab that is in there and the pin will slide right out.
With that being said, your problem is going to come with obtaining a new plastic clip. Ford does not sell the clip individually. The only way to get a new one is to buy a "fuel injector wiring harness". Plan on spending a considerable amount of money (more than likely around $150, if not more). So, the next option will be to go to a junk yard and see if you can get the plug that way. What you will probably find out is they will sell you just the plug, but they are going to charge you for the whole harness as you have essentially made the rest of the harness worthless to them (therefore they will not be able to sell it). So, they are going to try to get their money out of you. You can try checking out a NAPA store and seeing what they can do for you. When it comes to electrical parts, my experience has been if anyone is going to carry it, it will be NAPA.