I'm looking there now but I can't post there.

Or are you suggesting I look for someone who's made an offer and message them? That's not a bad idea, ty.

What can I do? Can I find a reputable bitcoin seller and transfer linden dollars to them in second life or is my money kinda locked there for a while?

I was aware that something could go wrong so I added more dollars than I'd need in case I needed to create an attractive transaction for a B$ seller, I have L$39,490, I'm willing to pay first, as long as there's a legitimate way I can verify the person has a good reputation.