I think this is the faucet:
https://www.amazon.com/Dura-Faucet-D.../dp/B00HYIDXCI
As to how to replace it, I'd remove the sink trap, the wood divider between the 2 cabinet doors (4 easy screws), and then try to reach up there with your hand to unscrew the supply lines. They are plastic nuts, but not hex nuts, but rater, I think, having just 2 "wings" that protrude from 2 sides (but not a wing nut). After you do that, there are 2 large plastic nuts that can also usually be unscrewed by hand that fasten the faucet to the sink. Stick a mirror and flashlight up there to see what you're working with.
A basin wrench can help if you get in a bind, but I've never found them super easy to use.
Since you don't have a fresh water tank (I don't think) under the sink, it should be easier than if it were (like mine).
Dave