Awesome, thank you for the insight.No It was said to add 100* if the probe is right before the turbo. I think you should still be fine with it 10" from the head.
I redid the downpipe flange where I attached it to the rest of the exhaust. The downpipe sent to me was 2 3/4 and the stock pipe is 2 1/2, so I welded a stepper to the exhaust side and ran a clamp on the other side. I also used some of that high temp exhaust sealant on the downpipe flange to the turbo, as it wasn't sealing correctly.
In hindsight.. I should have probably waited to put the turbo on until after my camping trip. I'll be looking for a stock or like-stock downpipe soon, I don't need an extra large performance one.