Note: This is strictly a low budget build. I'd much rather have a bigger, nicer building, with hydraulic lifts, insulation, A/C, etc. So most will not be interested in this series at all. But, for the low budget guys that can handle a $10k budget build, some of this info may be helpful.
Concrete is really expensive nowadays. And our local concrete plant shut down. So, the truck had to come from West Monroe, about 40 miles from us. So the concrete guy ordered just barely enuff to make the pour, with VERY little left over. I was hopping to have enuff left to bust up and use for rocks in some of the potholes in our driveway/road. But I didn't get much.