I was just looking into the NSA Ready Brute system earlier this week.
You can buy an entire package (Tow bar, surge brake, baseplate and wiring) for $1899 directly from NSA. It's not only is it straight from the factory but its the best deal I could find for any towing setup. I haven't bought it yet, but I'm going to soon!
https://www.readybrake.com/
I hope this saves you some time trying to find a deal!