Spray paint a 1:24 car

I have a 1:24 mustang shelby gt500 and I hate that stickers are all over it, the body looks like it's made of alloy zinc and the body is already painted black with some sprinkles,someone said that primer and paint can is enough(I want to make it like the third picture but keep the stripes white). Is it true? Which type of spray paint do I need to buy? Is sanding with grit paper necessary? Using tape over the stripes and snake can help keep it clean from the spray paint? Is there any special techniques needed? Matte primer and bright yellow "glossy" spray can will work?