Ok, thanks everyone! I'll see how much he wants for all the fish, and any I don't want I'll trade in at my favorite LFS for store credit. Or if he wants more ill just get the pbass, FL gar and maybe the polleni and bichir. Which Pbass is the mono? The only ones I have ever seen were 2in hybrids in LFS, so I'm really not super confident on identifying big ones in person.
Also, would the wolffish or payara by compatible in a 700g tank with large cichlids, the Pbass, gar, giraffe cat, bala sharks and fire eel? I don't know a lot about either...