I have converted a '62 c-10 to FI. Grabbing as many of the FI parts off the doner truck is a good idea. Don't forget the air cleaner, since some late models have the MAF sensor in them nowadays. You can also convert your original fuel tank to FI if the doner truck tank doesn't fit, but using an external FI pump is not the preferred way. And there is an aftermarket electronic speed sensor so you can use your original speedo. There is an outfit in Arkansas called Street and Performance that deals exclusively with FI conversions, harnesses, etc. and are very good to deal with. When you are done, you will have a very unusal truck, since most older cars and trucks at the shows do not have FI.