Mathew Newton wrote:
have to sort it. It then dawned on me that actually the panels
are probably okay; it's the posts that are likely rotting at the
base (or the concreted hole is no longer holding) and so I should
replace the posts and footings sooner rather than later - that
might avoid the concerns over panel matching, at least for a few
more years.

I tried that a few years ago - except the panels had been dropped
into slots and then also nailed to the posts, and couldn't be
detached in anything approximating one piece.

#Paul