We have a large IW stock trailer which we love for larger numbers of sheep, cattle ponies etc., but when looking for a small one to do what you are describing, we went for a CLH Trailers one instead. We prefered it because a) it was better value for money b) you can put the internal gate in different places rather than just in the middle so you can have a smaller section and a larger section c) the roof is hinged at the front, so one (fairly weak and feeble i.e. me) person can raise it from the back, drive the quad straight in and lower the roof back down very simply.