i took my test in a case international 956xl was great, to be fair mate it doesnt really matter how wide the tractor is really, the guy will tend to be easier on u if u do it it a rural location rather than it a town.
the rules on what u can and cant tow when u pass ur test are that strict really, im sure most ppl dont stick to them
oh yeh and another thing i learnt on me test day is that ur not sopposed to drive to ur test site someone else has to do it soposedly