no idea on the brakes, dont see why that would matter.
i would always recommend storing the car with clean oil.
running the AC for a few minutes before storing it is a good idea, as the refrigerant has a lubricant mixed in with it that preserves lines and seals.
i do usually put fuel stabilizer, but if you use good gas its very unlikely that it will go bad in 6 months. keeping the gas tank full prevents humidity from building up inside the tank.
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2002 TiAg M3 6mt
deoranged, dechromed, led tails, ZHP knob, UUC SS v3, GROM, OEM 220M 19's, Michelin Supersports
2006 YZF-R6, bunch of go-fast stuff