Hi wise horsey people I am after some advice. My horse has grown out of his trailer 172 now from 161 as a 4 year old. I need to upsize. Any recommendations on high head room trailers? I tow with a car with max tow lload 2000kg he’s 600 kg and it’s usually me and daughter so might be tight with a IW 511 which seems to be the recommended one. Would look at a single or double, currently he is cross tied in a double with no partition and single breast bar. Thanks in advance x