@mboyd if you look at the link above the measurements are there, I pasted them for you. I also think that sandblasting the front of your car is one of the issues of flat towing, so Musbjim uses a bra some use a hanging broom style rock arrestor or low riding rubber mudflaps to prevent the rocks from hitting their car.
BTW, the trailer tail light setup is a necessary thing to getting the attention of those in the rear of you.
