Bagging an I-Beam truck isn’t too bad as long as you throw drop beams on it. You will have camber issues, but you'll also have that using a Crown Vic set up as suggested. I’d suggest that you do what you can with the money you have and keep it driving (on the road), have fun with it. When you can afford to do more, do it then.
Edit: Just realized this thread is over a year old. Haha, hope he's doing OK by now. Nice bump schronce79