Ford (or any other car maker for that matter) does not like to produce line specific parts. The same parts that are on the GT40 and Cobra are on my 4.6 GT and my 3.8 V6. (At least the ones we are talking about) I can't confirm, but I would reckon that the same transducer and FDPM are on the trucks... Not saying that the complete system is the same, it most likely is not; but fueling (other then getting the correct pump and injectors) should not be an issue when boosting the returnless trucks... Rods and Pistons, well... that's another story.
I don't know what problems Jess was having, I've been gone since he came around, but that stock computers and fuel system should be fine with boost. You just have to adjust all the scalars to see more than 100% load (VE).
Edit... Hey didn't I sell you a 2.3 computer once?