Hi Jonathan,
I sure can appreciate your enthusiasm as one day some years ago I had that very same enthusiasm and I sure wish I had auto detailing forums and the internet to turn to back then. So, I'll tell you what I wish I had been told back then, which is, "YOU CAN"T DO IT ALL!" Pick your poison so to speak. You'll either want to do lot cars/retail stuff or you're going to seek the high end exclusive market.
Each market has its pros and cons, but to try and grab the whole market will be a headache. Big trucks and RV's just suck and not many people want to pay what it costs to PROPERLY prep and detail them. Boats same thing and motorcycles can be just as much if not more than cars to clean, prep and detail out.
There is nothing wrong with doing lot (dealer cars) washes and good money can be made and there is a fairly low stress level. Flip side is the high end exclusive clients and while it's cool to work on these nice cars it's also a fricken big headache dealing with a good majority of the owners cause they think their poop don't stink.
So my advice is figure out what area of the market you want a slice of then go gang busters after it. Charge according, be on time, under promise and over deliver. Follow that and you'll do fine.
Anthony
