I think the point being missed is it takes a lot of money to do this business(right). It isn't a stretch to have $100,000 worth of equipment/tools on the site to build a $10,000 wall or patio. I don't think you need all new equipment, there are good deals out there if you are patient or know what to look for. I also will over spend for equipment/tools if it allows me to get away from hiring guys but that is just me. And I just plain like equipment and tools.
Financing is a tool for the business but you can get in trouble with it, live by the sword and all. I had to learn the hard way but sometimes there was no other way to get equipment I needed. It's great if you can pay cash for stuff.
Do or do not. There is no try. yoda