your also opening yourself up for a huge amount of ball ache.
As soon as any tree hugger finds out that your transporting them all hell will let loose. You can be transporting animlas for the RSPCA and you will still get someone complaining.
There are more regulations to do with moving animals than there are moving people.
If they are getting transported for contraversial reasons. Ie lab rats and the like. Your in for a whole load of hassle.