Starter need help on Aoshima ING+ Subaru WRX STi 5 door

[STitUned]

Hi all big brothers,

I am completely new to modeling and need help and guidance for building the Aoshima No 63 box set as attached.

Questions to ask,

1. What brands for paint should I use. Tamiya's Acrylic paint okay to start with?

2. Different type/size of brush to paint front hood, small parts like Headlight/Taillight, Rims, Rear Wind, rear hood, etc?

3. How do I tint windows? I read that I need to use air brush but the type/model is hard for newbie to choose from.

4. For the cement wise, Tamiya's okay to start with?

5. If the cars came pre-painted, should I remove the paint than spray to another colour or can I use overwrite it?

When I think of more, I will post.

Hope you all are willing to assist me and don't mind my ignorance. Thanks!