What is your budget, sir? I would say to get the best camera you can that's within your budget. I don't know what state you're in, but if people in your state don't mount front license plates, a rear-facing camera would be useless for capturing plates. I think Ideally, you would want both front and rear-facing cameras, but that's gonna run you $500 or so for decent setup, unless you go with cheap generic rigs.

I suspect that the longer you wait, the more quality will increase and prices will decrease. But you gotta jump on the technology train at some point, and $250 is about the minimum now for a camera that does everything you want:

https://www.amazon.com/CYCLIQ-Fly12-...SIN=B077NNB6QR