Can't make money DeadHeading without charging for fuel and some labor and depreciation.
I custom haul boats and have a special built adjustable trailer but I rarely have a return and usually have to leave out empty to pick one up.
I charge accordingly.
Car hauling I sold the 3 car hauler as I could rarely get a full load both ways. A two car hauler and hot shot hauling is the best and just do special deliveries, point to point.
For exotics an enclosed trailer is a must.
AND a million dollar liability insurance policy.
Fuel mileage drops quick when hauling with a 3/4 or 1 ton.
I go from just the truck at 24 mpg to 10-12 hauling.
Diesel is $4.08 around here. I have a 35 and 90 gallon tank to I can stock up here wholesale.
I sometimes figure it by the hour of driving plus fuel and expenses if it's a Good Buddy deal
IF you can get a small carrier that hauls 4 to 6 cars you might get a better schedule but plan to wait awhile. Most will not give a date of less than three weeks to set up a run. Hard to do.
Figure the mileage, fuel price, labor for the driver, depreciation, meals, lodging and things add up quick.
Depending on how far they have to come from and drive to FLA $1000 sounds cheap to me.