That last question is a real stumper. It seems like mint vintage stuff (pre-95, say) is moving REALLY well right now. Maybe there's just renewed interest due to the newer jersey market being so poor. Edge resale is a total dumpster fire, and it seems like people are skeptical of MiC Adidas, even without a retail option.
I've been waffling on selling my Rangers TBTC, and the crazy prices lately haven't helped me there. If I sell, the odds of finding a reasonable replacement are virtually nil.
Even if Keener doesn't open back up for fan jerseys, I'm not too worried about it. There are other options.