Ya looking at paying somewhere around 2000 for it doing 6 inch deep. Thats for ya dig, skips, concrete, labour...

MATCOS

np. Remember, DO NOT be temted to put some concrete in the hole first thinking it will stop it sinking...it will sto moiture escaping out of the bottom of the post and will rot it... Also dont wrap the bottom in a bin liner like some old blokes do thinking it will stop it rotting