but will I ever recover them?
I've replied to your PM with instructions on how to restore your balance with the zapwallettxes option.
It would be awesome if we get listed on graviex and crex24. I can surely help you out with crex24. Once it's done, we can find few more people to contribute for the listing on Mercatox (1.4 btc) or Stex (1.1 btc).
Graviex has been paid for, currently waiting to hear back from Crex24. Emailed Mercatox and will find out how much they want.
Thanks man, Please let me know when crex24 replies back

It's best to email stex as well. Currently Stex and Mercatox are equally good. Mercatox has slightly higher volume but stex has been performing pretty good for the last 4-5 months (Since the time they rebranded).
Hopefully Xbc will get listed on Graviex, then crex24 and then either stex or mercatox (whichever costs less).