I'm surprised it's unobtainable. Colombia has some good teams (Once Caldas, Atletico National, Millonarios, Deportivo Cali etc...), a real homogeneous league, like Brazil. Moreover, it's the country of Falcao, Zapata, Ospina, Armero, Jackson Martinez, Guarin, James Rodriguez, Zuniga etc...
Would be awesome to try to rival brazilian and argentinian (and even teams from Chili, Mexico, Ecuador or Uruguay)!