basically I just want elipitical shape on the leading edge. straight trailing edge and add a flap wit eliptical trailing edge.
So here is a thought.
Would it be easier to create a 3 or 4 piece block for the leading edge from multiple pieces of 1/4 or 3/16 and fuild it like a linclon log wing jig ?
Piecing in each rib like the stelitto is built ?
I guess a molded leading edge is right out, unless you're into NC machining and carbon fiber.
Depending on how much curvature you want you could either laminate it around a form out of many pieces of 1/16 or 3/32, or you could build it up as you say.
Laminating works a treat for curvy wingtips on old-timers; it should be the bee's knees here, too.