I wouldn't limit yourself to just 5's. There is an army of 80's and mechanics that go each year and probably enough parts to rebuild one from scratch... You'll make it home is what I am trying to say haha Top of the world, Hells Revenge, Poison Spider , gold bar rim, elephant hill should be on your list
haha... more about how well I did my LS swap, and did I torque everything correctly after a full mechanical rebuild...
It will be nice to see your turbo 1FZ-FE and compare it my 2020 6.0 L96/6L90e.