PV, just how much concrete do you need to mix? It is not that hard to
just mix concrete in a one wheeled dolly with a steel tub (forgot what
it is called), and then it is easy to dump into wherever you need to
pour it. Not for large quantities, obviously. One bag at a time. One
bag == one gallon of water == 3 minutes mixing time with a
shovel. Leather gloves help a lot.

i