WMCC had a display of these trailers at the CKM model show a couple weeks ago. They are very clean and represent a race trailer nicely. They can be built with or without the tire carriers, the loading ramps slide into holders under the floor of the trailer. Very nice indeed. That being said, for some reason I will still attempt to build my own trailers. Being a former welder and having built a couple of trailers I enjoy the process and the resulting individuality of the trailers.