Couple things to note on this. My car is very rust free for a new england car. I still ended up with a large pile of bolt head trophies, one of them being from the block off plate behind the up pipe. Managed to drill it with a left hand drill but broke the easy out off inside. I clamped it down good with the other one but I do have an exhaust leak coming from somewhere that I need to find and fix. I'm hoping its not from that but if it is I guess I'll be drilling it out and helicoiling it because the bolt is very much fused to the head. It makes me wonder, does the block off plate for that side fit the bolt pattern of the hose on the air pump side? If so just putting the block off on that side would make this mod immensely easier since it would only require intake manifold removal. Instead it requires removing the up pipe (which requires removing the down pipe and turbo).
Also suggest that you have the nut extractor sockets that irving tools makes. The ones that grab onto rounded nuts and bolts. Those were essential for removing the nuts that hold the turbo to the downpipe (and obviously buying new nuts).