I also recommend Palm Beach Airguns. Joel (owner) is a bit of an introvert, less than forthcoming with information at first. Very helpful after he warms up to you. Good inventory of high quality merchandise.
Thanks everyone for the helpful input. In the end, I had a coworker that drove down so she was willing to transport everything for me. The lizards were plentiful and I was able to humanely put a dent in their population.
I'm familiar with the requirements to transport an air tank on commercial aircraft. What about private aircraft? Other than advising the pilot and securing the cargo, I can't find any regs prohibiting transporting a bottle pressurized or not.