Found out that the inner tie rod *IS* shop-replaceable, built just like every other Nissan model works, and is just consciously omitted from all known parts databases, as if Nissan just decided not to publish those parts (or that aftermarket manufacturers/distributors didn't feel like listing/maintaining that part, not 100% sure on how that works). Either way, there are near-identical-looking inner tie rods for EVERY other Nissan model made in 2011-2012, but none for the LEAF.
We just took a torch to it and bent it back to near-perfect alignment in a vice. It becomes very easy to bend with just a bit of torch heat, bends back straight, then dumped water on it to cool and stabilize it again. My suspension is almost back to new, and I just need to bring it back later to finish the alignment on a machine. And clean the red curb paint marks off the wheel.
The Leaf FB page replied to my post as well
, saying I should try the dealership for parts and to post back with the progress (and/or result of asking the dealership). I'll probably do that after I clean off the curb paint though.