nc1500, was not trying to a jerk on why you pulled it, my aploigies.
Lot of work though.
I would replace the turbo O rings, but i assume you were cause you were pulling the turbo. I would change the pedestal o rings too.
The up pipe gaskets would be easy in your situation. Re tighten and maybe replace the nuts and bolts holding the up pipe to the manifold. They rust in place.
Consider new exhaust manifold gaskets while up pipes are off too. Much easier to do when you can reach the stuff.
Look for leaks and fix.