Yeah, that's a great system on your Samurai... I'm surprized you'd want to change it out. But if you do, you'd want to get a distributor from a carb'd model, a fuel pressure regulator that regulates at around 1 to 5 lbs, and the intake / carb assembly off of your donor... You also need all the wiring because the carb is computer controlled... YOu could do a Weber and then you wouldn't need the computer and wiring but you'd still need the intake from the carb'd Samurai.
FWIW: there really is no benefit to doing this. It would be a big step backwards in performance and reliabilty.
May I ask why you are entertaining this idea?
-Eric