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Fencing

I am hoping to get a dog and need my yard fenced asap. I basically need about 10-12 metres of fencing and want to go with the most cost effective option. I have existing trellising, so wonder if extending this might work. I need the fence to be around a metre high. Behind the fence there would be a concrete sloping retaining-type wall (uneven and in parts broken). This is my neighbour's driveway (see pic). The fence preferably would go behind the trees??? Can I say again that it needs to be cheap, not necessarily beautiful??!!