n8ly - does the guy want primarily SMB or panfish too? You need to find out his goals before an appropritate stocking is done. It is all about goals. SMB in a 4 acre pond will be a challenge to manage to keep the bass growing well. Is there appropriate habitat for SMB or will the pond basin be basically a renovated LMB BG pond?

Does the pond have weed growth? What types? And how extensive?

Was fertilization used?

What has commonly been the usual water clarities?

Is feeding the fish an option for the owner?

aka Pond Doctor & Dr. Perca Read Pond Boss Magazine -
America's Journal of Pond Management