Ok, this MAY fit, according to my calculation and your measurement, i think i can get this in the back of my tranny connect diagonally but we are talking afew CM off and it wont fit......
im going to keep an eye on this for a few days, if no one bites , ill come and take a punt as im off work from tuesday onwards. im slightly concerned i may travel all the way and it not quite fit or worse i damage it trying to get it in the ( smallish) van. however..... i do think it will fit with some very careful loading.
Drop me a PM if it doesn't go by monday .