converting animated editable splines

Hi,
I do some tests for an abstract, experimental short. https://vimeo.com/44604173
What do you see: There are some tumbling particles, which trails are converted to splines and checked on 'renderable' parameter- a method using the pfspline-script described by Anselm von Seherr-Thoss somewhere.
I used a Falloff as a heightmap to scale the things down at their end.(and there is an additional animated displacement map ins some of them)

whats my question? I was thinking of exporting the things as an obj-sequence directly to nuke- and see how smoothly it is controllable there. Because, if I like these things in productions I would like to have thousands of them and there will be pretty long shots not only 100 frames.

But, because they are splines, I cannot snapshot them. I thought about using Lofts, but the Loft-command- as I found out- its not scriptable.

Any ideas, suggestions?
thanks a lot in advance

Martin