When i bought my B8200, i used a U-haul enclosed trailer. I think it was the 10ft (might have been the 12ft) long version with double doors. I used car ramps to get the tractor in and out. There are tie down loops inside on the floor for securing the machine too.
It worked out great overall.
A U-haul car trailer will not work. Their open utility trailer might work for a BX but the tail gate opening (IIRC was only 48" wide) was not wide enough for the B8200 (54-56" wide), so i had to use the enclosed.