You're upscaling the sprites and then decreasing the size of the character through X and Y scale in the cns? It should be enough to find all the targetbinds and multiply the existing position settings. For eg
pos = 25,-30
becomes
pos = 25*2,-30*2
Or something like that. I don't normally like basic sprite upscales and my math may be utterly wrong. Try values times 2, and if that doesn't work multiply them by 0.5 instead.