The panels will be supported by heavy duty 7' T posts, and the corners will be reinforced by 8' T posts.
We ordered a pallet (50) of cattle panels; they're heavy duty enough to stand up to any abuse our goats might throw at them, with big enough gaps to allow the chickens to meander through the livestock cross fencing so that they can access all the paddocks to peck and scratch for bugs and tasty weeds. They can be dismantled and moved if needed, and added to easily.
The first phase will be to set up the perimeter fence. When that's done, we'll set up the garden and orchard areas, goat paddock, chicken run and rabbit colony.
Garden and orchard areas will be fenced off so that none of the livestock can access it unless the gates are left opened specifically for that purpose (fall and winter clean up, fertilization and tilling). Because we have deer that meander through the back side of our property, we will use significantly taller fencing for the garden and orchard, to prevent the deer and other wildlife and livestock from raiding our produce.
The goat paddock will have its own shelter, and when opened, will allow the goats free range of almost our entire property, to help keep the blackberries and other weeds in check. The shelter will have a dutch-style door with latches so I can lock it in either the open or closed position. There will be a raised resting platform in the community area, and a couple maternity stalls. A hay, grain and mineral feeder is a must, along with a water trough, and there will likely be a French drain or at least gravel put in at the heavy traffic areas to help prevent mud.
The chicken run will remain open the majority of the time; it will be set up around the chicken coop in case we need to hem the flock in temporarily. The interior walls will be lined with 1/2"x1" wire mesh to keep chicks in, and to contain the flock temporarily if needed. I'm inclined to lay down 1"x2" wire to prevent predators from digging in, as well.
The rabbit colony is going to get a hardcore makeover. It will be larger, have roughly structured nest boxes that can be accessed from the surface, and a free tunneling raised mound in the center of their pen. Once their area is decided on, it will be flattened out as best as we can, then the ground will have 1"x2" wire mesh (to prevent digging out) laid out and secured to the lower level interior walls, which will be additionally lined with 1/2"x1" wire mesh (to keep small wandering kits in).
For now, we're waiting for the snow to melt off and the weather to warm up a bit so we're not fighting frozen ground to hammer T posts in place, but once the weather cooperates, we'll be off and running with this project.