I would say that one is a copy and paste of an actual ad Flan.

Too much info and far too technical for dumb scammers to put together.

Particularly the bit about trade. Not the usual MO.

When I googled the text, I found auctions on 2 other boat trader pages, both listed in WA (most likely genuine) and it has been sold. So i'd say someone has stolen the photos and text and listed it here.