CDL questions?

Question? I dont own a big truck to take the test in nor do i have an employer at this time. My intent is to work for a company in Texas after i get my credintials. No over the road stuff but i do need to have the hazmat. I'll be pumping fuel and hauling fire retardant(fertilizer) on the tarmac. Whats the method for getting a truck to use. How did you guys do it? Any ideas?
Small Block