Jslusher, you have a very good start to those numbers, keep adding, tires, brakes (a heavy ford eats rotors and pads every 40k at least), and you don't have a wage in there yet!
You don't have truck devaluation in there? Follows are a few facts about equipment devaluation, i don't make this stuff up it is not opinion! Never the less it WILL create some discussion
1) on average the first 3 years of a class 8 trucks life is its cheapest per unit cost!
(Heavy equipment is even a bit longer)
2) therefore on average you can not operate a used truck or piece of equipment cheaper than a new one per unit cost!
You can make it feel like by things like doing repairs yourself and not charging full rate for it.
3) you must use a new piece "full time" to have it be the cheapest per unit cost
4) now to figure cost of a service body ford take new price $60k then residual value after 5 years $30k ( 1/2 of new in 5 years generic but close on average for everything with tires or tracks on the planet) this truck has 125,000 miles on it because it was used "full time" 60 miles to job each day 220 days a year
So 60000-30000= 30000/125000=.24 per mile the add in your tires, fuel, insurance, repairs and maintenance and wage this is the minimum you should charge!
Now by no means if your not using your truck full time you can not buy a new truck and cover its cost from your revenue, but you used less expensive truck will actually cost a bit more than new
Also if your uncomfortable with the risk of paying for a new truck you shouldn't, for many years I chose to make a little less money hourly but slept easy at night not having that huge payment, especially the first year or two while your upside down in its value. Now I sleep better at night knowing I am not going to have to work on my own stuff when I get back from a service call or on my days off and only have to write a check every month.
There are exceptions to everything listed above but they are averages...stepping off the podium now class is dismissed....TIO