Swapping one into a VX shouldn't be much different than some Rodeo's/Trooper's I've seen. You could use the 2.8 mechanical injection Isuzu diesel which would make things MUCH easier, I know a guy that can get them imported fairly cheap. Getting the fuel system set-up really isn't that hard especially on a mechanical injection diesel. If you can do the work or have someone to help I bet you could do it for under 5K easy if you know where to look for the parts.