Start with what you got and buy the equipment you need as you go.
I would suggest putting over 50% of the profits back into the business in the first year. If your a hard worker it will pay off quickly and you will be able to build a strong business.
Make sure you get as many referrals as possible along the way and try to find some equipment at the end of the season when people are unloading or giving deals on them. This is a great way of getting decent BACK UP equipment that you will need in case of breakdowns that always seem to happen on same day.
Best of luck on the career