I have one, it was designed for goats but I have modified it slightly and it works for the minis. Its 18" off the ground, its 24" wide, with a side rail on each side. there is no top rail above the head, and I am planning on putting a rope for a chest bar on it and one at the tail. There is space for cross ties but I haven't put those in yet. I'll get pictures this evening. Its made of heavy guage steel, with a solid steel platform with a rubber mat covering it. for the taller ones, they don't really need a ramp but the smaller ones do. I am in the process of building a ramp.
Karen