Here's some details you may find helpful although it is also for a permanent setup:
Electric Fence Specifications
Charger: Use a fence charger that has a joule rating >.5 joules and delivers at least 5000 volts. The least expensive models that we use are the Gallagher B7S (.75 joules) and it is a 12-volt system that can be used where AC power is not available. Model M80 (.8 joules) b used where AC power is available. You can use more powerful model, but they are more expensive.
Batteries: The 12-volt systems work best with a 12-volt deep cycle marine battery connected to a solar panel that will keep the 12-volt battery charged. The solar panel is also sold by Gallagher and easily connects to the battery.
Poly-wire: We use the poly-wire for temporary fences because it is easier to install and tighten. We prefer to use the wire instead of the tape, because the tape can turn and slide over the back of a bear instead of sliding into the fur and making contact with me skin. The preferred poly-wire has at least 6 strands of metal wire interwoven with me poly-wire. It is preferable to use the 9 strands of metal wire if possible.
Insulators: We use the plastic snap on insulators for metal T-posts and the 6 inch nail on insulators for wooden posts.
Posts: For temporary fences or areas of rocky or hard ground, we use 6 ft. metal T-post and pound them in. If the ground is level, we space metal posts up to 20 ft. apart. If the ground is uneven, it will be necessary to decrease that distance so the wires follow the contour.
Ground Rod: We use a 4 ft. ground rod mat we pound into me ground and attach to the grounded portion of the fence. We also wrap me ground wire around the T-posts instead of using insulators.
Fence specs: We use a 4 ft. high fence with 7 wires. The top wire is at 4 ft. and the wires below are 6 to 8 inches apart. The sequence is as follows: Top: Hot Second: Hot Third: Ground Fourth: Hot Fifth: Ground Sixth: Hot Seventh: Ground
Since the bottom wire is a ground wire, it is OK if it touches the ground and vegetation. Try to keep the wires that are hot away from vegetation or a metal post or tree that might cause it to ground out the entire fence.