Great write up man! There's a ton of useful information in here that i spent hours scouring for online. Hopefully this helps anyone who is interested in going KA-T in the future. I finished mine earlier this year and i love it. Hope you get your issues sorted soon dude. My motor was at about 260k when I pulled it to turbo it. I ended up stripping it down and doing a head gasket and new gaskets everywhere.
My setup
Sr t25
Sr 370
N60 Maf
Isis 255 fuel pump
PBM high mount IC
JWT ecu