By the way, I been on other forums that I've seen guys pay up to 1,200 to install the kit.

Go to local shops they'll hit you with 75 or more a hour & its a two man job plus they'll milk the hours.

I paid 100 for mine to be installed, I also knew the guy, its just a pain in the ass to do the install, the fender cutting, the time to take your fenders off / front bumper fully off or just enough for the fenders to come off.
Some times you'll have to take each wire in the door an make the wires longer in that case that adds more time in the install leading you to be paying more. You paid 299.99 or less, give or take a little. Even if you did pay more your still looking at a good amount for the install... You can do it your self but I'm not sure if your kit is able to be adjusted but if it is don't mess with it if you don't know what your doing. Take it from someone who's seen the installs, google / youtube some install videos. You'll see how much work it takes to make a kit actually work the way it should. Install it your self & you'll find your self having more issues then what it is really worth, make my words.