Welp me and my brothers mobile detailing buisness is starting to get serious, we have the enclosed trailer and the chemicals and some of the equipment now we need a truck, This trailer is like 7 or 8 X 15 foot with an electric break system, people tell me to just get a big 6 like a 4.3 Vortech GMC or somthing like that I think im gnna get an 8cly I want a big truck capable of pulling a big trailer and that has a quad cab... but I dono gas prices sound better with the 6... Any suggestions?