If you can get them, heat packs are handy. Personally I'd bag them, and pack them much like I would if I were shipping them (styrofoam lined box). Fish during shipping last up to a week or longer so a day's drive may only have them stress a little, but they will be fine.
Breed for the breed, not for the money; the words any REAL breeder would understand.
You must know nothing in order to know all, for all is nothing and nothing is for all.