That is the frame I purchased also for $299. I did have one problem with it. With just a few bricks loaded on it the crossmember where the hitch attaches started to bend and twist. I searched and found the same problem listed in another thread somewhere. What I did to fix it was had a 5' piece of 2x2 square tubing welded behind the crossmember that the hitch attaches to and had the hitch welded to the frame so It could not pivot on the 2 bolts holding it in place. This solved the problem.
I will be using the holes at the end of the square tubing to hold the trailer lighting that had to be moved because of my floor.
Hope this helps.