I have hosted collecting trips for CAAS on a couple of occasions though there has been little interest of late, or I haven't been contacted at least.
If you are willing to drive the hour or so south to Columbia, I would be glad to help you get whatever fish you want. Send me a list of species and I can work out a plan.
Hey Dustin and Gerald,
How nice to see both of you here! Yes, I'm the same "twohuskies" from CAAS. Dustin, I've posted on the CAAS thread, and am ready, willing, and excited to drive to Columbia to get in on your next collecting trip. VERY excited about getting those chubs...

Gerald, thanks for your suggestions too. Unfortunately, the fish I wanted to move around to leave the pictus cats and rainbow shark didn't work out. So, not going to even have to try to make them work with the redbreast. I think if I can get the chubs, I'll be content with my true native tank.
But, would love to start a smaller tank with the blackbanded and perhaps some darters or shiners. Now, we just need to go on a collecting trip!