At the risk of stating the obvious, if you're at first stating you want a Colombian BCI and then later saying you'll 'settle' for a Suri (BCC), you're looking at two entirely different animals and two entirely different care intensities.
With that out of the way, you obviously know of Rio Bravo, another great breeder is Vin Russo of Cutting Edge Herps. The Diaz family of Legacy Reptiles is another boa breeder with a good reputation, and a great facebook page.