95 Yukon engine and tranny swap?

I just hit 280k miles on my 95 Yukon and decided its best to swap out the engine and tranny before they finally die.

I ordered and received a long block and tranny.
my question is . . . what else should I be swapping out as well?
the list so far is:
~~~~~~~~~~~~~~~~~~~~~
upper and lower radiator hose
195f thermostat
fan belt
water pump
fuel filter
air filter

Starter
Alternator
o2 sensor
PCV valve
EGR Valve

plugs, wires, cap
distributer w ignition modual

anything else I am missing?

-fuel pump was swapped out 3 months ago, as were the injectors

Motor mounts and tranny mount.

//2000CAYukon

yep, had those on my list as a check and verify