That is the highest F16 quote I ever saw for the US market. So I would find it far more believable if it is written as "16.5K and down". This 16.5k quote probably includes several upgrades like kevlar hulls as well (and some wishful thinking).
I guess one can read the footnote : " * price will vary depends of options." in two directions.
But I have to admit that if indeed 12.3k is accurate for a fully fitted sloop F17, then that is is an impossible quote for F16's to beat. The F16 sloops have never been quoted below 14k in the US. And indeed 12.3k will be at a level that any F16 builder trying to match that will go bankrupt.
Personally I don't even believe that any modern and fully fitted sloop spinnaker boat can be build for that quote while retaining a profit/agent margin or even recoupering the building/transport costs. That it is not the place to discuss that here.
The price of the F16 includes the jib, sheets, blocks, extra trap, etc I believe.
Any official quote for the F16's includes everything needed for a sloop rigged, 2-up, spinnaker boat in race attire. F16's don't have any upgrades that are required for sailing/racing in a different mode. The quote system is reversed. If you want/need less then you get deductions.
Wouter