Custom color-matched paint

I will buff the car eventually. Sounds like I might have a better time painting the whole thing.

Basically, the front end is trashed and needs new paint. The hood and bumper came from a different car and are different colors and one fender needs to be painted, so I’m planning on at least doing both fenders, hood, headlight buckets and the front bumper.

But, from what it sounds like, even though the paint would be on different panels, it might still not look right?