1... meh.... im not a fan, unless they are a full retrofit
2... thats your choice
3... eww no. get red/clear tails
4... avoid fiberglass kits.... they tend to break and have fitment issues
5... see 4, and there is no factory kit
6... ok. dont forget a camber kit
7... 15 are too small , but you might find a cheap set of OEM EX rims.