Hello Grob,
Don't let Texel entry stop you from building this boat. It will take at least one year for you to build the boat and learn to sail it well. Develope a reputation based on demonstrated speed and endurance and the Texel people will gladly welcome your entry.
A boat of this configuration is physically very difficult to sail. It is physically very demanding. To keep this boat at peak speed, the sailors are constantly in motion. You are never still. As the relative wind changes, the force in the sails changes and therefore the overturning moment and pitching moment are constantly changing. To keep this narrow boat at the proper heeling angle and fore and aft trim angle requires constant and quick movement of the skipper and crew. This thing amounts to a one hulled catamaran.
Back in the 1960's I sailed a boat one afternoon that was put together with one Shark catamaran hull and a Flying Dutchman rig/sails. The boat would go fast in spurts but sailing it fast mile after mile would be very demanding and require an athlete in condition like a marathon runner. The sailor of a boat of this type is constantly in motion using his legs to position his weight properly and using his arms to steer the boat and trim the sails all of which is constantly changing.
Don't let Texel entry stop you from building this boat. Show those Texel people how fast this boat is and how well you can sail it and they will ask you to please come sail in the Texel race.
Goos luck,
Bill