I have done 2 day trips... It could be done but wont be easy.
Use a power inverter (12V to 120V) in your car vs battery powered. You will need a 5 gal bucket and a heater per fish (+1 for filter media), an air pump with a line for each bucket, and its prob smart to have a thermometer in each bucket. Staying in a hotel during the nights allowed me to do water changes (bring dechlorinator) and make sure things were in check.
The best option would be finding a LFS or local fish keeper that is comfortable with shipping. Have them hold the fish for a week and send them when you have arrived and got the tank running.
Use a power inverter (12V to 120V) in your car vs battery powered. You will need a 5 gal bucket and a heater per fish (+1 for filter media), an air pump with a line for each bucket, and its prob smart to have a thermometer in each bucket. Staying in a hotel during the nights allowed me to do water changes (bring dechlorinator) and make sure things were in check.
The best option would be finding a LFS or local fish keeper that is comfortable with shipping. Have them hold the fish for a week and send them when you have arrived and got the tank running.