Wire mesh can make a cheap and portable composting container. We never had much success with this at The Oak Tree farm, probably because the site was very exposed to the wind, but Nigel Griffith at Landews Meadow Farm and Dave Beecher use this technique successfully.
We are trying this again at a new site which is much more enclosed from the wind, and we have the benefit of mains power for pumping. However, we don’t have borehole water, so we had to fill a 220l water butt with mains water1, and leave it to stand for a couple of days to vent the chlorine.
Materials were freshly chipped tree prunings scrounged from some guys who were trimming trees for the council and a combination of hedge trimmings, windfall apples and other green material. These were shredded using a domestic rotary garden shredder to this sort of consistency