LIM Gasket's

[TDgrand]

So I have neglected my bad LIM for about a year or so now. My 2005 N/A has about 140000miles on it and I have some symptoms of a bad LIM.

-little bit white smoke out tail pipe.
-coolant very slowing going away (avg 1 quart over 6mths)
-engine temp fluctuating 180-210

1) Now its time to replace them and I need some help with gasket brands. I plan to get the aluminum LIM gaskets from GM. What brand should I do for the others?

2) What brand / type Gasket sealer for the four corners of the LIM?

Thanks in advanced.........