Scott, I went through this last month. I needed the whole kit so I purchased it from Victor at Spinning Wheels.
For anyone that needs just the block off plate (Magnum Powers inlet on a non-EGR car), you can get them from RJM Technlogies. It's the 1-3/4" size plate listed here:
http://www.rjminjectiontech.com/products/1-3-4-egr-block-off. With shipping, it's usually still cheaper from someone here (MadMikey, Ricardo, etc.).
As far as removing the EGR pipe from my son's 94 SC with stock manifolds, I used a Sawzall with the shortest metal blade I had and went under the car. Took a little maneuvering but I made the cut leaving about 1-1/2" of the pipe still attached to the fitting/nut in the manifold. This allowed my son to pull the EGR valve, with the rest of the pipe, from up top. He pulled it out as one piece so he didn't have to mess with removing the pipe from the EGR valve.
Now removing the nut and the rest of the pipe at the manifold is another matter. A six-point 15/16" deep dish socket fit perfectly but there was no way for me to fit a ratchet, let alone put any leverage on it. My son drove it down to the local shop and they had the old nut/pipe replaced with the new cap in 5 minutes. I figured this was easier than pulling off the whole manifold.
You might get lucky with some extensions, swivels, etc. Or if you cut the pipe flush with the nut, you might have more room. I only left the stub in case the shop couldn't remove the nut. At least they could weld a cap over it or something. But now that I'm thinking about it, they could have just welded over the nut if I cut it flush. Doing it again, I'd cut it flush. Maybe a regular socket would have given me more room in there.
Good luck!
-Allan