Forget about the F16's, while they satisfy most of your requirements they can be had in NL for less then 10.000 Euro's and they are not leasure boats that like being run up the beach.

My advice, as last time, is the nacra 5.0 or 500, they come most close to what you are asking for and on the secondhand market you can get them for 1500-2000 euro's. They also take relatively well to a spi and sail quite well both when singlehanding and doublehanding.

Also the Nacra dealor still supports this boat type and actually is promoting the 500 alot. The Hobie 18 is a dead boat when NL is concerned, the nacra 4.5 never took off here and the mystere 4.5 never made it here. Nacra 5.2 is out of production for a long time and I'm not sure how many spare parts the Nacra dealor keeps for this type anymore.

Wouter