Morning all...
On your maybe list. Do it all if you want to, then leave the T stat housing off and fill the LIM through there before putting the T stat in place. It'll help you a ton on bleeding the system of air.
The plastic gasket frames tend to bow inward to the coolant ports and intake ports in as little as 5-10K miles. Before metal ones were available, I did a set changed the coolant etc etc and then modded in about 8K miles and the gaskets were bowing inward already. Your choice..the suggestion is aluminum framed. It's the once and done option.
On your LIM bolts. Clean them and use a sealant on them when reassembling.
also ..as long as you have the coolant drained. Depending on year and mileage..consider doing the hoses. Most of us don't do them, but they aren't magical and can blow etc. It's wise to swap them out at some point around 100-150K
Valve cover gaskets. Only the front gasket is covered under the warranty work. And most of the time the grommets aren't replaced. So I'd do them both with fresh grommets while in there.
Do the TB gasket and pick up a can of TB cleaner. It's bad to run that stuff through a charger. I have the peeling rotor pictures to prove it. So clean it off the car.
