I think you need to do quite a lot of reasearch before you start stocking your tank again.
Pacus and kissing gouramis both get huge, and are incompatible. Pacus really need an extremely large tank. I wouldn't get any fish that get over 6" in the tank, unless you only have one or two of them. To be honest, you sound like African cichlids might suit you well. They're active and colorful, and you might enjoy them. Please feel free to ask questions about stocking and compatability (a new thread would probably be the best thing to do after you've done a little window shopping).