How to extrude Crv along Multiple curves

hello, i notice that there doesn’t seem to be a function to extrude Crv along Multiple curves…is there an equivalent method? i’m trying to create a uniformly curved taper as per image below

Could extrude the ends and use blendsrf. maybe loft. 2 rail sweep. Network srf could work too

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ah yes of course sweep 2 rails !