Welcome to the site, I'm just up the road from you in Salina.
You don't need a logo or an image if you are just starting out. Just sell some work do a nice job and go from there. Get some cash coming in and worry about your image later. Do what you say you are going to do and you will be ahead of most of your competitors.
If you must have a logo go with the one you have, its not that bad. Your work and reputation mean so much more than your logo especially in a small town like Buhler.
Get out there, work hard, get dirty and wear that equipment out!
Best of luck to you.