i am actually in my workshop right now working on my pvc fence i am using 8ft furring strips cut in half to make a 4ft section (storage and assembly ) and i use pvc for the posts 10ft of 1/2in cut in thirds to make 3 3ft 4in posts i then use a 7/8in bit to drill the holes
make sure you clamp the sides so you don't split the wood
it looks great i really would go with the pvc for looks and function