IMO - not a great idea. African Cichlids can be nasty lil' buggers with tons of lil' teeth and an attitude that is truely relentless - too much stress for a Cuda to with stand.
Also they have 2 completely different dietery requirements. S/A - C/A cichlids would be the way to go - Long tank 5'-8', overfiltration, current, and aquire all fish as juvies with the cudas being twice as long as the cich's. Thats I'm doing it.