Unfortunately, renting a truck for this trip from any other agency is double. For multiple days and if you give them estimated mileage, they will give you a discount rate on the mileage. Friend of mine just did 520 miles for only $320 for 3 days. Not too bad. Once you mention that you want to tow a trailer , they double the price. Enterprise commercial would be almost $1000 and that's the cheapest. Penske won't let you tow your own trailer, you have to rent the trailer from them too.