Before anyone takes issue with my opinions let me say this:
Sales is s funny animal and some people have it while others don?t, there are many levels in between too and many levels of right answers. If you think a new truck is part of your sales formula then wax on. There is more than one right way to do it.
For me and my business philosophy, I focus on people and results. I can sell that, but I am not so good at marketing myself with what I am driving. Maybe you can market that, but IMHO as a start up and all the hard lessons ahead, save the money and skip the paint job, both of yall are going to need every penny and probably more in just the first year. It takes money to make money and you are going to need that liquid cash.
Oh and one more thing, when you are really ready to buy a new truck, don't buy that diesel dually, 4x4, LWB, crew cab, HD; it will mark you as a new contractor and we will be laughing at you behind your back. When you are ready be smart and frugal, you will need your cash then too.