I dont even know where to start lol.For one if the car weighed 4200lbs you cant count the stuff you threw in it for a profit it as thats stuff u already had and had nothing to do with the van lol.So really the van weighed about 2500 lbs max so thats only 150 minus the 75 is only 75!
so you have
275 car
75 helper
35 gas to go get. Was 70 miles away one way
50 tow dolly
405 total



minus
300
75
80 for the cat not 100
is 50 dollar profit
so you still have aways to go to make it big lol.