okay bro just search the forum. it has been asked a bunch of times and yes there is such thing. seiichi i believe owns one or had and a brazilian fisher man has caught one.
If it were available, it would probly go for 5k+ and chances are above average it would find a home someplace in Asia. As much as I love cichla I couldnt justify 5k for one fish. That could by the 120x48x30 I dream of!
I think it would go for more than that. the price its only limited by what folks are willing to pay and theres some guys out there with serious money. so nobody can really say how much a fish like this is worth