rim

Greetings New to tubeless, got a flat, put a new valve stem in and noticed the giant gap. Is that a liner? Looks thicker than tape. Should I yank it and replace with rim tape? What would you do? (The pic with the leaking sealant is stock valve stem from Magicycle, surprised it held air at...

I'm trying to find a replacement rim for a crosscurrent. My LBS is having a hard time finding one, and I haven't heard back from juiced. Anyone had any luck finding a rim?