First, do it yourself. You do not need insurance, a truck, an excavator or trencher, personnel, etc. You need just a shovel, plumbing knowledge, and a lot of enthusiasm.
Second, you can open all the trenches, and we can do the design of the system and the plumbing work. Once it is done, you can cover the trenches back. That can save you money.
Finally, after you dig three or five yards and you give up, we can take care of the project as usually happens. But, at least you tried.