It looks like the only way would be a custom build. Have you considered S.K.Grimes?
I think 3D printing is the best way to do this, but if you're old school you could get some short E-mount and F-mount extension tubes disassemble them and use some hardware from each. Keeping the whole thing concentric and the two planes parallel would be tough without a mill, though. The more I think about this the harder it sounds.
Prof Hank over on DPR makes adapters with 3D printing. Maybe you could get some of his files for the tricky ends and design your own simple middle.
I'm not sure how much extension you could tolerate, though. The FFD difference is 28.5 mm, and the adapter would be at least 3 or 4 mm thick, so that's at least 32 mm. The Voigtlander 65mm E-mount lens uses floating elements, so it probably won't be as sharp if extended by 32 mm from where it thinks the focal plane is.
Jim