A lot of good information there, Skunk. That sifter you've got there is sweet!
My pop has a good bit more property than I do so I may try and talk him into getting a pile going in his yard and just have me maintain it.
That is a very good idea. If he has any wooded area that is an excellent place, since those micro-organisms are already thiriving on the forest floor.
Your dad probably has plenty of natural bio mass to add to your pile.
My dad built a nice bin out of 4 wooden pallets. Nail three together, in a "U" shape, and the last one is like a door, allowing access for loading, stirring and unloading. It also gives you that 3x3x3 size (or greater) that you are looking for to sustain the reaction.
My dad then added another one right next to it, so he had one that always "cooking" and the other was finished, usable.
Here is a pic of what the pallet type of compost bin looks like:
This one is lined with chicken wire (poultry netting).
As was mentioned above, adding compost to your soil is practically essential for healthy plant growth. In gardens we till up the soil to plant, but that allows the nutrients to leach away faster, so, the compost adds them back into the soil. And composting keeps all of that waste out of the landfill and put it to good use. It's a WIN all the way around.
I marvel at the folks who spend the weekend raking and bagging all their trimmings for pick-up. In the same or even less time, you can have it loaded into a compost pile/bin.