2200-2500 one way x 2 = 4400 miles on the short side
4400/20 = 220 gallons of fuel

220*4.50/gallon = $990

Plus the 2-5 days of travel, food, lodging, vehicle wear and tear.

I used to go through the same thing when hauling cars for people. Nobody ever thinks about the all inclusive cost.

750 isn't that bad, imo

I just got a quote to ship a Dana from Texas to SoCal, $385. Weight wasn't anywhere near your weight.