>>Maybe another solution
Build a median curve from your 2 original curves
Array Curve your object<<

I tried that did not really work>>There is also Copy (an object) to Points http://kyticka.webzdarma.cz/3d/moi/#CopyToPoints
but not sure the orientation will be always good even you take the center of gravity as your curve is some circonvoluted! ;)<<

Good tip, will have a look !