The dragon force 65 is a non starter for me, mast tooo tall and dagger board tooo long needing to much depth of water.
The lake is a quarry pit with a small beach.
I would need waders for the dragon force, and, I do not fancy falling off the edge into 100 foot of water. I do not know where the edge is, a cliff really. Quarry lakes can be dangerous sometimes.
The Lesro 575 only needs about 6 inches of water to float and sail from memory, so only wgellies needed and safer for me.
I will check out the plans mentioned but same "specs" apply, not too big, not too tall and not much water needed to float and sail.