Even in households with a single rabbit, spaying or neutering has plenty of benefits: It can protect your rabbit from several types of cancer and reduce or eliminate aggression, as well as other undesirable behavior, such as spraying, mounting, destructive chewing, and biting. (kerrvillevetclinic.com)
For a single rabbit, even a small dwarf breed, its cage or hutch needs to be a minimum of 4» L x 2» W x 18 ″ H (61 cm x 122 cm x 46 cm)... (caringpets.org)
The transport can be a single rabbit to dozens of rabbits. (indianahrs.org)