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.
I run a canadian HID kit company, if you have any questions about hid kits in canada or would like to check out our products please contact me here: http://absolutehid.ca
Hot: 2001 Estoril M Roadster
ZCP 19's michelin supersports, ZHP knob, JL 8W3
Cold: 2002 TiAg M3 6mt ZCP 19's michelin supersports, deoranged, dechromed, led tails, ZHP knob, UUC SS v3, GROM, OEM 18's w310's,
fun: 2006 YZF-R6, black