HI, See my previous posts about 3.5t boxes(I am in Buckinghmahire). It is almost impossible to find a GOOD<SOUND and reliable 3.5t box. I looked for almost a year.In the end I had mine built for me.It was cheaper than I expected, I got the box I wanted, and best of all on a 2005 citroen chassis-however, I had to go to Wales to get it done.Well worth it though as the box was cheaper and newer, and better built than i could ever imagine I could afford. PM me if you want to know more/can't be bothered to look at previous posts or would like me to email/text photos of it. Sorry I haven't sussed out adding photos to this forum yet!
I bought mine from Evolution horseboxes in Blackpool they were brillaint and i think a couple of other people on here have used them and are really pleased x