2. Ask ExoRipper or Luke if he will do another run. If I understood this correctly they are selling spots.
I don't sell the fight, Luke did. I was simply another participant, we had a couple spots left, and I had Luke's permission to advertize it to fill those spots. And as far as I know, he's not selling another one soon. I'm not selling one either cause I have no alpha basilisk fangs, unfortunately.
If you simply want a fight to unlock the tek chestpiece though, I can help with that. Discord is ExoRipper#1093, we can talk details over there.