Yea as long as you have the place to work and the tools it's just a matter of doing it. My problem is, I have access to the shop and tools but it's down in FL, so I was going to have to take everything down there to do it and I decided that was simply a dumb idea. I figured I be better off just to pick up a newer van and then later on pick up a ujoint kit once I'm already down there.
I can tell you the way I was going to do the swap, was simply do a complete sub frame swap. I think that was going to be the simplest and easiest way to do it. The other option was to cut the suspension brackets off that sub frame and put them on my frame but that's a lot more complicated and a lot more work.
I really think just doing the whole sub frame is the best way, but it just depends if you are willing to pull the drive-line out of your van or not. I was going to replace the engine & trans in mine, so doing the sub frame was going to be no issue.. However if you don't want to pull your drive line, then just using the suspension set up & brackets will be the way to go.