Heavy machinery, fleet, construction pressure washing prices

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I started a pressure washing business thinking I would be doing more residential jobs but recently I was offered an independent position with a 24hr construction company but it turns out the current washer is no longer leaving them so I’m not needed. The positive in this crappy situation is I found what I want to do, I want to stay in the heavy machinery, fleet, construction vehicles pressure washing area. I have called several grading and construction businesses and a few have asked for price list. I am having trouble putting down prices because I haven’t done it by list. I usually am better at giving the price when it’s complete depending on the work it requires. 
 

Does anyone have a heavy equipment, fleet, tractors, dump trucks, construction vehicles pricing with add on’s like interior, wheels, details, etc? Please and thank you!