Module is available as a DIY project only.
No info about availability.
A bit of CV bleedthrough becomes audible when using high frequency CV but that's not a problem in normal use cases. I guess you could use PJ-324 jacks instead of the more expensive Lumberg ones but I never tried it.
For more information see: https://www.modwiggler.com/forum/viewtopic.php?t=262747
https://github.com/diysynth/EURORACK-MODULES/tree/main/DUAL%20VCA